Chapter 9 Application of Forces and Transfer of Energy

Question 1

What are the types of forces?

Answer 1

Contact force & non-contact force

Question 2

What are the contact forces?

Answer 2

Frictional force/ friction
Elastic force

Question 3

What are the types of non-contact force?

Answer 3

Gravitational force/gravity
Magnetic force

Question 4

What is friction/frictional force?

Answer 4

is the force that opposes motion between two surfaces in contact
•Between two objects in physical contact

Question 5

What is elastic force?

Answer 5

exerts a force in the opposite direction
•Is a force acting on a stretched or compressed object to return to its original shape