Physics Review #1

The position of a runner in a race changes as time passes. What could a reference point to describe the change in position? 

• the starting line
• the runner’s speed
• the runner’s right foot
• another runner

When an object’s distance from another object is changing,

• it is in motion.

• it is speeding.

• it has a high velocity.

• it is accelerating.

Which of the following dot diagrams shows an object that is accelerating

• A

• B

• Neither object is accelerating

• You can not tell from the dot diagram

• constant speed

• increasing speed

• decreasing speed

• no speed

A place or object used for comparison to determine if another object is in motion is called a

• comparison point
• reference point
• point of view
• motion detector

What does this graph represent?

• Constant Speed
• Acceleration
• Deacceleration
• Not moving

What is the formula to calculate speed?

• S = t/d
• S = d/t
• S = d x t
• S = t x d

What is the person doing from 5 seconds to 10 seconds?

• Walking at a constant speed
• Running fast
• Not moving
• Walking slow

According to the graph how far does the person travel in the first 5 seconds?

• 2 m
• 10 m
• 0 m
• 5 m

What is the speed of a car that travels 400 m in 20 minutes?

• 20 mi/hr
• 20 m/min
• 800 m/min
• 200 mi/hr