Newton's laws of motion

Question 1

Definition of force

Answer 1

Push or pull effect that alters, or tends to alter the state of motion of the body

Question 2

What 5 things are forces needed to do?

Answer 2

Create motion
Cause deceleration
Cause acceleration
Cause a change in direction
Change the shape of a body

Question 3

What is Newton’s first law?

Answer 3

Law of inertia

Question 4

What is the definition of the law of inertia?

Answer 4

A body will remain at rest or uniform velocity until acted upon by an external force.

Question 5

What is the definition of inertia?

Answer 5

The resistance of a body to change it’s state of motion

Question 6

What is the definition of velocity?

Answer 6

The rate of motion in a particular direction

Question 7

What is Newton’s second law?

Answer 7

Law of acceleration

Question 8

What is the definition for the law of acceleration?

Answer 8

The acceleration of a body is proportional to the magnitude of the force and takes place in the direction in which the force acts.

Question 9

What is the definition of acceleration?

Answer 9

The rate of change of velocity/momentum

Question 10

What is the definition of momentum?

Answer 10

The quantity of motion possessed by a moving body

Question 11

What is acceleration inversely proportional to?

Answer 11

Mass

However, muscle = more force so more acceleration. Fat mass = no more force so decrease acceleration

Question 12

What is Newton’s third law?

Answer 12

Law of reaction

Question 13

What is the definition of the law of reaction?

Answer 13

For every force exerted by one body on another there is an equal and opposite force exerted by the second body on the first.

Question 14

What is the definition of action force?

Answer 14

The force exerted by the performer in another body

Question 15

What is the definition of reactive force?

Answer 15

An equal and opposite force to the action force exerted by the second body on the first