Forces and Motion

An object is _____ if its position changes relative to another object.

• in motion
• at reset
• a frame of refence
• magical

A truck driving at 60 miles per hour travels 150 miles. How long is it driving for?

• 9000 hours
• 0.4 hours
• 210 hours
• 2.5 hours

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

A distance vs. time graph shows an object's

• frame of reference
• speed
• acceleration
• favorite food

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

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

The International System of Units, or SI units, is

• the modern form of the metric system used by scientists today
• an ancient form of the metric system no longer in use by scientists
• the American system of measurement
• the Icelandic system of measurement

The SI unit for length or distance is

• foot (ft)
• inch (in)
• mile (mi)
• meter (m)

The SI unit for time is

• second (s)
• minute (min)
• hour (hr)
• year (yr)

Therefore, the SI unit for speed is

• miles per hour (mi/hr)
• meters per second (m/s)
• inches per year (in/yr)
• feet per second (ft/s)

Velocity is

• speed and acceleration
• constant speed
• a frame of reference
• speed in a given direction