Question

name: miah satcher
types of forces mini - assessment
directions: answer the following questions.

1. what is a contact force?

a. a force that causes two objects to collide into each other
b. a force that results when two objects physically touch each other
c. a force that results when two objects do not physically touch each other
d. a force exerted by electrically charged particles or objects

1. which of the following is an example of a contact force?

a. gravity
b. friction
c. both a and b
d. neither a or b

1. which of the following is an example of a non - contact force?

a. gravity
b. magnetic force
c. electric force
d. all of the above

1. what is the difference between a contact and noncontact force?

one has contact and one does not have contact

1. give at least two examples of a contact force and two examples of a non - contact force.

Explanation:

1. A contact force occurs when two objects physically touch. Option b is correct.
2. Friction is a contact force as it acts between two surfaces in contact. Gravity is non - contact. So option b is correct.
3. Gravity, magnetic force, and electric force act without the objects in contact. So option d is correct.
4. The key difference is that contact forces require physical contact between objects, while non - contact forces act without such contact.
5. Contact force examples: pushing a box (applied force), pulling a rope (tension force). Non - contact force examples: the Earth's gravitational pull on an apple, a magnet attracting a nail (magnetic force).

Answer:

1. b. A force that results when two objects physically touch each other
2. b. Friction
3. d. All of the above
4. Contact forces require physical contact between objects, while non - contact forces act without the objects touching each other.
5. Contact forces: pushing a box, pulling a rope. Non - contact forces: gravitational force, magnetic force.