Physical Science A Exam

2.2 km = ________m

• 2200

• 220

• 2.2
• 200

400 m = ______ km

• 400
• 40,000

• 4.0

• 0.4

If a runner runs around a 400 m track one time and ends up where she started, what DISTANCE has she run ?

• 0 m
• 400 m
• 800 m
• • 40 m

If a jogger runs around a 400 m track THREE times and ends up where he started, what is his DISPLACEMENT?

• 0 m
• 400 m
• 800 m
• 1200 m

If a plane travels 48,000 m in 80 s, how fast is it going?

• 3840000 m/s
• 600 m/s
• 80 m/s
• 60 m/s

How long will it take a Pony Express rider to travel 24,000 m if he is traveling at a speed of 12 m/s?

• 48,000 s
• 4,800 m
• 200 s
• 2,000 s

A driver SPEEDS UP from 20 m/s to 45 m/s in 5 s. What is his acceleration?

• 5 m/s^2

• -5 m/s^2

• 25 m/s

• -25 m/s^2

This is the force on an object due to gravity.

• force applied
• force normal
• force weight
• force friction

This is the force that is exerted by the surface an object is resting on.

• force applied
• force normal
• force weight
• force friction

What force is needed to accelerate a rocket at 60 m/s^2 if the rocket has a  mass of 20,000 kg?

• 3,000 N
• 3,000 kg
• 120,000 N
• 333 N