Newton's laws

Question 1

What is Newton’s first law?

Answer 1

A body will either remain at rest of continue to travel in a straight line at a constant speed unless acted upon by an unbalanced force

Question 2

What does it take to resist an unbalanced force?

Answer 2

Inertia

Question 3

Does a higher mass give more or less inertia?

Answer 3

More

Question 4

If you have a small amount of inertia, what does this mean?

Answer 4

It is easier to change velocity (direction and speed)

Question 5

What does inertia tell us?

Answer 5

How effective an object is at resisting changes to their state of motion

Question 6

What is Newton’s 2nd law?

Answer 6

The rate of change of momentum of a body is equal to the net applied force and takes place in the direction of the force

Question 7

What is the equation of Newton’s 2nd law?

Answer 7

F = M * A

Force = MAss * acceleration

Question 8

What is the equation for momentum?

Answer 8

p = m * v

Momentum = mass * velocity

Question 9

What is the equation for impulse?

Answer 9

FΔt = mΔv
Force * change in time = mass * change in velocity

F*Δt = Δp
Force * change in time = change in momentum

Question 10

If there is no net force on the body, what does this mean?

Answer 10

Body is in equilibrium - stationery or continue in same velocity

Question 11

What is Newton’s 3rd law?

Answer 11

For every action there is an equal and opposite reaction