Forces and Newton's Law

Although we use many units for measuring time, for most of physical science we measure and record time in

• second
• feet
• meters
• pounds

A descriptive of how far it is from one point to another (measured in units of length) is called

• time
• weight
• distance
• velocity

The value calculated by dividing the distance traveled by the time taken to travel that distance is referred to as________.

• acceleration
• weight
• force
• speed (velocity)

The rate of change in the speed (velocity) of an object is called

• acceleration
• speed
• direction
• rate

One of these is NOT a unit of distance.  Which one?

• Mile
• Inch
• Newton
• Meter

Which of the following are in the correct order from smallest to largest?

• Millimeter, meter, centimeter,kilometer
• Millimeter, centimeter,meter,kilometer
• Centimeter, millimeter, meter, kilometer
• Meter, millimeter, centimeter, kilometer

In one-half hour, a bicyclist traveled 20 kilometers.  What was the bicyclist's average speed?

• 60 km
• 10 km/hr
• 40 km
• 40 km/hr

If the average speed of a drag racing car is 0.069 miles per second, how long would it take the car to complete a 1/4 mile (0.25 mile) straight track?

• 0.02 seconds
• 0.28 seconds
• 3.6 seconds
• 3.5 hours

A rocket sled accelerated from 10 m/sec to 50 m/sec in 2 seconds.  
What is the acceleration of the sled?

• 10 m/sec²
• 25 m/sec²
• 40 m/sec²
• 20 m/sec²

Objects tend to resist changes in motion.  This property is called:

• weight.
• momentum.
• potential energy.
• inertia.