Geography 2nd Quarter Reviewer

A runner races in the 100-meter dash. It takes her 10 seconds to finish the race. What is her speed?

Gem runs 10 kilometers in 20 minutes. How fast is she moving?

• 0.05 km/min

• 0.05 km/hr

• 2 km/min

• 2 km/hr

A comet is cruising through the solar system at a speed of 100,000 kilometers per hour for 8 hours.  What is the total distance traveled by the comet during this time?

• 800,000 miles

• 12, 500 miles

• 800,000 kilometers

• 12, 500 kilometers

Calculate the speed for a car that went a distance of 155 kilometers in 2 hours time.

• 310 km/hr

• 77.5 km/hr

• 310 m/hr

• 77.5 m/hr

A racer accelerated from 0 m/s to 400 m/s in 10s. What is the acceleration of the racer?

• -40 m/s2

• 40 m/s2

• 40 m/s

• -40 m/s

Speed tells how fast or slow an object is moving.

• TRUE

• FALSE

Speed can be calculated by dividing the distance it has covered by the total travel time.

• TRUE

• FALSE

The unit for acceleration can be meter per second, kilometer per hour or mile per hour.

• TRUE

• FALSE

Speed with a given direction is called velocity.

• TRUE

• FALSE

Acceleration is the change in speed divided by time.

• TRUE

• FALSE