Speed Review

Which of the following can you use to calculate an object’s speed?

• Direction/time

• Change in velocity/time

• Distance/time

• Time/force

A student places a toy car at the top of a ramp and releases it. The student records the distance the car has traveled at different increments of time. The student’s data is displayed in the following table.

What is the approximate distance the toy car traveled at the end of three seconds?

• 25 centimeters

• 27 centimeters

• 23 centimeters

• 36 centimeters

Tugboat A exerts a force of 1000 N on a large Barge as shown in the diagram above. Tugboat B exerts a force of 3500 N on the same barge, but in the opposite direction. What will be the net force on the barge and the direction it will move?

• 4500 N to the right

• 2500 N to the right

• 4500 N to the left

• 2500 N to the left

What is the net force on the box?

• 10 N

• 20 N

• 0 N

• 40 N

In what direction will the box move?

• Left

• Right

• Up

• Down

What is the net force and direction of the box?

• 7 N to the left

• 7 N to the right

• 23 N to the left

• 23 N to the right

What is on the X axis?

• Time (minutes)

• Time (kilometers)

• Distance (kilometers)

• Distance (minutes)

What is on the Y axis?

• Time (minutes)

• Time (kilometers)

• Distance (kilometers)

• Distance (minutes)

During each 15 minute interval, the train travels at a distance of ____

• 45 km

• 36 km

• 18 km

• 9 km

What is the speed of the train?

• 36 km/hr

• 18 km/hr

• 9 km/hr

• 72 km/hr