QUIZ - Newton's First Law

What does Newton's 1st Law state?

• An object at rest will stay at rest, and an object in motion will stay in motion, unless acted upon by an outside force
• An object at rest will not stay at rest, and an object in motion will not say in motion, unless acted upon by an outside force

Newton's first law is know as "The Law of ____________".

• Speed
• Inertia
• Movement
• Science

Abigail Roller skates 4km in 0.5 hours What is her average speed in kilometers per hour?

• 2 km/h
• 8 m/s
• 4 km/h
• 8 km/h

Which of the following is a unit for velocity?

• meters
• m/s
• seconds

Which of the following includes magnitude AND direction?

• Speed
• Velocity

True or false. A balanced forced has a net force greater than zero and is considered to be in motion.

• True
• False

If I were to kick a soccer ball, what are the two main forces that keep the ball from traveling forever? (Select 2 answers)

• Gravity
• Frictionless surface
• Friction
• Zero-gravity

Describe what happens if you are riding a skateboard and hit something (like a curb) with the front wheels.

• You and the skate board will stop, since you hit the curb
• Your body will keep moving forward and the skateboard as well.
• Your body will keep moving forward and fly off your skateboard since the curb only stops the skateboard, and not yourself
• Your body will stop and the skateboard will continue to move forward.

What is the speed of a car traveling 150 miles in 3 hours?

• 50 mph
• 450 mph
• 50 km/h
• 100 mph

If a runner increases her speed from 4 m/s to 8 m/s in 2 seconds, what is her acceleration?

• 2 m/s²

• 4 m/s²

• 8 m/s²

• 0.5 m/s²