Newton's 1st & Second law

When a student runs and kicks a ball, they have applied an ___________ force to move the ball.

• Balanced

• Magnetic

• Spring

• Unbalanced

When the teacher rearranges the desks in the classroom, she must apply ____________ to push and pull the desks around.

• acceleration

• force

• weight

• magnets

What law is best described by inertia?

• 1st

• 2nd

• 3rd

• law of conservation of mass

A person not paying attention while skateboarding hits a rock. The skateboard stops...they don't.

• The Law of Inertia (1st law)

• The Law of Acceleration (2nd law)

• The Law of Conservation of Momentum

• Action Reaction Law (3rd law)

What Unit do we Measure Force in?

• Newtons

• Joules

• Force

• Kilograms

A 20 kg bike accelerates at 10 m/s2. what was the force

F = m x a

• 25 Newtons

• 20 Newtons

• 200 Newtons

• 10 Newtons

8 N to the left , and 4 N to the right. Find the net force. Is this balanced

• 12 N Right No

• 4 N Left No

• 12 N Right Yes

• 4 N Left Yes

Which of Newton's laws is shown

• 1st law

• 3rd law

• 2nd law

If there is a big mass, it would need a stronger force to accelerate it. Which law does this describe?

• 3rd law

• 1st law

• 2nd law

An evil ewok threw a rock with a force of 24.6N and an acceleration of 6m/s² at an innocent stormtrooper. What was the rocks mass?

• 4Kg

• 41kg

• 4.1kg

• 46kg