Carly notes (Physics)

Question 1

What is force?

Answer 1

A force is an interaction between 2 objects. It is a push, pull or a twist.

Question 2

What type of force is gravity

Answer 2

Gravity is a non-contact force

Question 3

What type of force is magnetism

Answer 3

Magnetism is a non-contact force.

Question 4

What type of force is applied force?

Answer 4

Applied force is a contact force

Question 5

What type of force is friction?

Answer 5

Friction is a contact force.

Question 6

What type of force is tension (Spring)

Answer 6

Tension (Spring) is a contact force

Question 7

What are the 5 main forces?

Answer 7

1. Gravity
2. Magnetism
3. Applied force
4. Tension (Spring)
5. Friction

Question 8

What type of force is static electricity

Answer 8

Static electricity is a non-contact force.

Question 9

What is a contact force?

Answer 9

Contact force is a force that acts on objects through physical contact.

Question 10

Does the force have to be unbalanced to an object to move, and why?

Answer 10

A force does not have to be unbalanced for an object to move because if the object is already moving and it stays at the same speed (it doesn’t accelerate), then it is a balanced force.

Question 11

What is a non-contact force?

Answer 11

Non-contact forces act on objects without physically touching the object

Question 12

What is a reaction force>

Answer 12

A reaction force is a reaction to another force that equals it in the opposite direction e.g. if gravity is pulling an object down, the ground provides a reaction force that equals gravity by pushing the object up with the same amount of force. If two opposing forces are balanced the stronger the force will be in the direction the object ACCELERATES (not moves) in.