Question

semester 1 vocabulary
units 1-2: motion, forces & newton’s laws

answer	definition	word bank
	a support force exerted on an object in contact with a stable object	air resistance
	how fast an object is moving	applied force
	a force that pulls objects down toward the center of the earth	balanced forces
	the force that is transmitted through a rope, string or wire when pulled by forces acting from opposite sides.	displacement
	an object’s resistance to change its state of motion	distance
	the rate at which an object changes its velocity (speeding up or slowing down)	friction
	a force that acts in the opposite direction of objects moving through air	gravity
	forces are unequal, causing some change in the motion of an object	inertia
	how much ground an object has covered during its motion	instantaneous speed
	forces are equal, causing no change in the motion of an object	net force
	describes an object’s overall change in position (start to end)	normal force
	the vector sum of all forces that act upon an object	speed
	speed at a particular moment in time	tensional force
	a force between two surfaces that acts in the opposite direction of the moving object	unbalanced forces

Explanation:

Match each definition to the corresponding term from the word bank using standard physics vocabulary for motion and forces.

Answer:

Answer	Definition
Normal Force	A support force exerted on an object in contact with a stable object
Speed	How fast an object is moving
Gravity	A force that pulls objects down toward the center of the Earth
Tensional Force	The force that is transmitted through a rope, string or wire when pulled by forces acting from opposite sides.
Inertia	An object’s resistance to change its state of motion
Acceleration	The rate at which an object changes its velocity (speeding up or slowing down)
Air Resistance	A force that acts in the opposite direction of objects moving through air
Unbalanced Forces	Forces are unequal, causing some change in the motion of an object
Distance	How much ground an object has covered during its motion
Balanced Forces	Forces are equal, causing no change in the motion of an object
Displacement	Describes an object’s overall change in position (start to end)
Net Force	The vector sum of all forces that act upon an object
Instantaneous Speed	Speed at a particular moment in time
Friction	A force between two surfaces that acts in the opposite direction of the moving object