Newton's Laws Of Motion

Question 1

Newton’s first law of motion states…

Answer 1

A resultant force is required to change the motion of an object

Question 2

Newton’s law of motion concept

Answer 2

• stationary object has a zero resultant force it will continue to stay still
• if a moving object has a zero resultant force it will carry on moving at the same velocity

Question 3

Newton’s second law of motion states

Answer 3

If Non zero resultant acts on an object, then it will cause the object to accelerate

Question 4

Newton’s second law of motion concept

Answer 4

If one force applied on an object is unequal to the opposite force, the object will move

Question 5

Acceleration

Answer 5

Change in velocity over change in time

Question 6

Velocity

Answer 6

Depends on speed or direction

Question 7

Part two of Newton’s second law of motion

Answer 7

The size of the resultant force is always directly proportional to the acceleration it causes

Question 8

Equation for the second part of Newton’s second law of motion

Answer 8

F = ma
F is force
M is mass
A is acceleration

Question 9

Newton’s third law of motion states and concept

Answer 9

‘Every action has an equal and opposite reaction’

Whenever two objects interact, they exert equal and opposite forces on each other