物理
運動學、受力分析、電學與方程推導。
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question 1 of 10 a man has a mass of 110 kg. what is his weight? a. 559…
D. 1078 N
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question 10 of 10 a skateboarder is accelerating forward. how would his…
C. His acceleration would decrease.
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question 9 of 10 an asteroid leaves our solar system and continues movi…
C. Inertia
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question 8 of 10 which term describes the tendency of an object to resi…
A. Inertia
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question 7 of 10 which of the following describes an action - reaction …
D. The Moon pulls on Earth, and Earth pulls back on the Moon.
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question 6 of 10 a skateboarder rides down the street. when his feet pu…
C. The skateboard pushes up on his feet.
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a woman who entered the workforce in the 1960s could expect to gain reg…
C. work for male supervisors and managers.
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question 5 of 10 a toy cars engine pushes it forward at a constant spee…
A. The toy car's state of motion changes.
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question 4 of 10 what does newtons third law describe? a. action - reac…
A. Action - reaction pairs
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question 3 of 10 a car skids on a wet highway. according to newtons fir…
D. Forces act on the car.
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b. true/false. write true if the statement is correct and false if the …
1. False 2. False 3. False 4. True
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question 2 of 10 which of the following equations describes newtons sec…
B. $m = \frac{F}{a}$
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question 1 of 10 which law is stated below? the acceleration of an obje…
B. Newton's second law
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question 25 of 25 you throw a baseball straight up into the air with a …
D. 2.5 s
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question 6 (mandatory) (1 point) the joint between femur and patella is…
diarthrotic; hinge
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question 24 of 25 a gymnast falls from a trapeze while doing a stunt. a…
C. 0.4 m
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question 7 (mandatory) (1 point) the joints between phalanges have the …
Question 7: hinge; flexion/extension of fingers/toes Question 8: pivot; rotation of radius
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question 23 of 25 a cyclist rides in a circle with speed 3.2 m/s. what …
C. $0.85\ m/s^{2}$
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question 9 (mandatory) (1 point) the joint between the occipital bone a…
**Question 9**: pivot; rotation of the head **Question 10**: humerus and scapula; ball and socket
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question 22 of 25 you wad up a piece of paper and throw it into the was…
D. $0.88\ m$
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question 21 of 25 a motorcycle is capable of accelerating at 5.1 m/s². …
B. 5.7 m
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question 20 of 25 you kick a soccer ball with a speed of 12 m/s at an a…
C. 0.44 s
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question 19 of 25 which of the following is a scalar quantity? a. accel…
D. Speed
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question 10 (mandatory) (10 points) listen vertebral osteoblastic metas…
A. alkaline phosphatase
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question 18 of 25 which of the following shows the shape of a position …
C. C
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the rheumatoid factor associated with chronic rheumatoid arthritis is c…
IgM
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question 17 of 25 a train rolls past a stationary observer. to him, the…
A. 21.7 s
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a foodborne illness outbreak consists of __ or more people who eat the …
A. 2
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degenerative joint disease in the hands begins with the initial formati…
D. Heberden nodes
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question 16 of 25 when a driver presses the brake pedal, his car stops …
D. 64 m
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the most common primary malignant tumor of bone (osseous tissue) is: mu…
C. Osteosarcoma
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question 15 of 25 which of the following is true about a planet orbitin…
C. The direction of the velocity vector is always changing.
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question 14 of 25 a centrifuge is used to test space pilots. the centri…
B. 34 m/s
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which of the following does not help encourage food safety? periodic in…
Using good customer service skills
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question 13 of 25 a train accelerates at -1.5 m/s² for 10 seconds. if t…
A. 17 m/s
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question 12 of 25 an apple falls out of a tree from a height of 2.3 m. …
A. 6.71 m/s
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question 11 of 25 a car drives 20 miles north and then 3 miles south. w…
D. 17 miles north
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question 3 (mandatory) (1 point) the articular motion that the image is…
supination
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question 10 of 25 you accidentally drop a book out of the window of a t…
D. 27.4 m/s
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question 1 (mandatory) (1 point) the articular motion that the image is…
flexion
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question 9 of 25 the diagram below shows the velocity vectors for two c…
C. 5 m/s west
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question 8 of 25 a pencil is rolled off a table of height 0.92 m. if it…
C. 0.43 s
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question 7 of 25 to a stationary observer, a man jogs east at 2.5 m/s a…
C. 4 m/s east
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which of the following is not associated with diaetes insipidus? poliph…
A. Polyphagia E. Glycosuria
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question 6 of 25 you toss an apple across the room to a friend. which o…
A. Its acceleration is 9.8 m/s² down.
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signs and symptoms of kyphosis in the mid - thoracic spine of an adoles…
Scheuermann Disease
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22 what are some physical effects of short - term stress? backaches and…
Backaches and fatigue
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question 5 of 25 while competing in the olympics, an athlete hurls a di…
C. 14.1 m/s
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which of the following tumors has been known to secrete prostaglandins?…
B. Osteoid osteomas
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what are some physical effects of short - term stress? backaches and fa…
A. Backaches and fatigue B. Increased muscle tone and appetite
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question 4 of 25 a football player runs down the field with a speed of …
D. 2.5 s
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question 1 (mandatory) (10 points) listen hypertension and the associat…
B. Hashimoto's Thyroiditis
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question 3 of 25 a car speeds up from 5 m/s to 12 m/s in 20 seconds. wh…
D. 0.35 m/s²
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21 which physiological reaction to stress helps to prepare the muscles …
Muscles tensing
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question 2 of 25 you drop a rock down a well that is 31 m deep. how lon…
A. 2.5 s
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question 1 of 25 the picture below shows a person swinging a toy plane …
D. B
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21 which physiological reaction to stress helps to prepare the muscles …
B. Muscles tensing
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discuss possible sources of error in the following measurement. then st…
Possible sources of error: counting inaccuracies, data collection issues, data entry mistakes. Precision: reasonable level of precision.
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question 10 of 10 you perform an experiment to measure the speed of a c…
C. 22 m/s
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3.3.2 quiz: organizing and analyzing experimental results question 8 of…
C. The results of some experiments might not be explained by any known theories.
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question 6 of 10 you perform an experiment to measure the speed of a ca…
C. 26 m/s
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question 3 of 10 you perform an experiment to measure the speed of a ca…
B. 25 m/s
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16 using free wi - fi makes devices vulnerable to intrusion and increas…
A. True
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question 9 (mandatory) (1 point) which specific vertebral bone is this?…
axis; dens
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question 1 of 10 you perform an experiment to test how far a cannon wil…
B. 72°
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16 using free wi - fi makes devices vulnerable to intrusion and increas…
True
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question 8 (mandatory) (1 point) what bone marking is the arrow pointin…
spinous process; thoracic vertebrae
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question 10 of 10 a man stands still on a moving walkway that is going …
D. 0.3 m/s south
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question 9 of 10 the diagram below shows the velocities of two cyclists…
D. 5 m/s west
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question 8 of 10 why is it important to define a frame of reference? a.…
C. Motion must be defined relative to something.
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what bone marking is the arrow pointing to in the image? sella turcica …
sella turcica
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question 7 of 10 a moving walkway has a speed of 0.4 m/s to the east. a…
A. 0.1 m/s west
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lab 6 exercise questions which bone is the arrow pointing to in the ima…
zygomatic bone
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question 3 (valuatory 4 points) what is the arrow pointing to in the im…
perforating canal
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question 6 of 10 to a stationary observer, a bus moves north with a spe…
A. 9.6 m/s north
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question 1 (mandatory) (1 point) which of the following bones is not pa…
Question 1: C. scapula Question 2: B. bone marrow
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question 5 of 10 a boat sails along the shore. to an observer, the boat…
C. 2.7 s
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question 4 of 10 a train moves east with a speed of 45 m/s. a man on th…
A. 25 s
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question 3 of 10 car 1 drives 35 mph to the east, and car 2 drives 50 m…
D. 85 mph west
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question 2 of 10 a man stands still on a moving escalator and a woman w…
C. \(0.3\ m/s\)
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question 1 of 10 the diagram below shows the velocities of two runners.…
A. 17 m/s west
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where did roosevelt and churchill decide to begin their attack on nazi …
North Africa
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who was chosen as leader of the us forces in europe? george s. patton d…
B. Dwight D. Eisenhower
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question 10 of 10 when the moon orbits earth, what is the centripetal f…
B. Gravity
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question 8 of 10 the picture below shows a person swinging a yo - yo in…
B. B
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question 7 of 10 the picture below shows a centrifuge used to test astr…
A. B
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question 6 of 10 a car drives at a constant speed of 14 m/s around a ci…
A. $3.6\ m/s^{2}$
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question 5 of 10 a toy car is tied to a post with string, causing it to…
C. A
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question 4 of 10 a point at the end of a propeller has a centripetal ac…
C. 2.3 m
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question 3 of 10 a spinning ice skater will slow down if she extends he…
D. Angular momentum is always conserved
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question 2 of 10 which of the following happens to an object in uniform…
D. Its velocity changes.
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question 1 of 10 a race car has a centripetal acceleration of 18.75 m/s…
B. 15 m/s
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question 10 of 10 a football is kicked with a velocity of 31 m/s at an …
D. -9.8 m/s²
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challenges facing the allies the allies had to fight a global war in tw…
- Troops and supplies would have to be divided between two distant locations. - Forces would have to be maintained and supplied over a huge part of the globe. - Enemy forces held …
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question 9 of 10 which term describes an object moving in two dimension…
D. Projectile motion
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question 8 of 10 a ball rolls horizontally off a table of height 0.6 m …
C. 0.35 s
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question 7 of 10 a ball is thrown with a speed of 20 m/s at an angle of…
A. The vertical component of velocity is zero.
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question 6 of 10 a boy throws a football horizontally from a window tha…
A. 9.1 m
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question 5 of 10 a squirrel jumps into the air with a velocity of 7 m/s…
A. 0.3 m
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question 4 of 10 a projectile is fired with a velocity of 8 m/s at an a…
A. 7.2 m/s