Newton's laws

Question 1

What is Newton’s 1st law of motion?

Answer 1

• Objects will remain at rest, or continue at a constant velocity unless acted on by a resultant force

Question 2

What is Newton’s 2nd law of motion?

Answer 2

• The acceleration of an object is proportional to the resultant force acting on it and inversely proportional to the objects mass

Question 3

Equation for Newton’s 2nd law

Answer 3

• Resultant force (N) = mass (kg) X acceleration (m/s2)

Question 4

What is Newton’s 3rd law of motion?

Answer 4

• Whenever two object interact, the forces they exert on eachother are equal and opposite

Question 5

What is inertia?

Answer 5

• An object’s resistance to change motion
• If an object is at rest, it will tend to remain at rest

Question 6

What is inertial mass?

Answer 6

• The property of an object which describes how difficult it is to change its velocity

Question 7

Equation for intertial mass

Answer 7

• Intertial mass (kg) = force (N) / acceleration (m/s2)