motion review

During which line interval is the object traveling at a constant?

• B to C
• D to E
• F to G
• it traveling at a constant during all of the intervals shown.

Which runner stopped for a rest?

• Albert
• Bob
• Charlie

Which runner ran 100 meters the fastest?

• Albert
• Bob
• Charlie

Calculate the acceleration for segment A.

(Ending Velocity - Starting Velocity) / Time

• 2 m/s²
• 20 m/s²
• -2 m/s²
• 0 m/s²

A car driving at 50 miles per hour drives for 2 hours. What distance did it cover?

Distance = Speed X Time

• 50 miles
• 25 miles
• 100 miles
• 75 miles

The speed of the vehicle between points A-B is...

Speed = Distance / Time

• 12m/s
• 8m/s
• 10m/s
• 16m/s

Acceleration of an object happens when things ________

• slow down
• go faster
• change direction (turn)
• All of the above

A car is driven for 3 hours. What else do you need to know to describe this car’s speed?

• the road the car in driven on
• the time of day
• the distance the car is driven
• the number of passengers in the car

What is the speed of a runner who runs 400 meters in 40 seconds?

Speed = Distance / Time

• 10 meters/second

• 40 meters/second

• 100 meters/second

• 1,600 meters/second

An automobile you are riding in suddenly stops, why does your body continue to go forward?

• An object in motion stays in motion.

• Gravity pulls your body towards the earth.

• Friction makes your body slow down.