1D Motion Test

What is the speed of an object at rest?

• 0.0 meters per second

• 1.0 meter per second

• 9.8 meters per second

• 15 meters per second

Which of the following units is the SI unit of velocity?

• seconds

• kilograms

• meters

• meters per second

Acceleration is defined as

• change in displacement

• rate of change of displacement

• change in velocity

• rate of change in velocity

What is the SI unit of measurement for acceleration?

• seconds

• meters per second

• meters per second squared

• meters

When there is no air resistance, objects of different masses dropped from rest

• will fall with equal accelerations and with equal displacements.

• will fall with different accelerations and with different displacements.

• will fall with equal accelerations and with different displacements.

• will fall with different accelerations and with equal displacements.

To elude a pack of wolves, an elk runs 15 meters in 0.75 seconds. What is the speed of the elk?

• 5 meters per second

• 10 meters per second

• 12 meters per second

• 20 meters per second

The slope of a distance versus time graph represents:

• position

• displacement

• velocity

• acceleration

An athlete runs 40 meters, north and 30 meters, south. The resultant displacement of the runner is:

• 70 meters, north

• 10 meters, north

• 70 meters, south

• 10 meters, south

What is the displacement of a car going at 25 meters per second for 2 minutes?

• 500 meters

• 1,500 meters

• 2,000 meters

• 3,000 meters

An ice skater moves initially 8 meters over 3 seconds and then travel 22 meters for 7 seconds. What is her average velocity?

• 2 meters/second

• 3 meters/second

• 4 meters/second

• 6 meters/second