Speed, Velocity, & Acceleration

Speed of an object with a given direction.

• Acceleration

• Velocity

• Average Speed

The rate at which an object travels a distance divided by the total time taken.

• Velocity

• Average Speed

• Acceleration

The rate at which velocity changes (i.e. speed changes and/or direction changes)

• Velocity

• Average Speed

• Acceleration

A car travels on a down the highway at a constant speed of 70 mph. This describes which type of motion?

• Speed

• Velocity

• Acceleration

An airplane travels 1260 km from San Francisco northeast to Chicago in 3.5 hours. This describes what type of motion?

• Speed

• Velocity

• Acceleration

When a car goes around a corner at a constant speed of 20 mph, why do we say it accelerates?

• The car is accelerating because of the velocity is constant.

• The car accelerates because the speed is constant at 20 mph.

• The car is accelerating because it's changing direction.

A truck slowing down to stop at a red light is an example of which type of motion?

• Speed

• Velocity

• Acceleration

A car speeding up to get on the highway is an example of which type of motion?

• Speed

• Velocity

• Acceleration

If a car is going around the roundabout in Bryan, and its speed remains constant, which statement describes the car’s motion?

• The car is not accelerating because it has a constant speed.

• The car is accelerating because it is change direction as it goes around the curve.

• The car has a constant velocity because nothing about the cars motion is changing.

• The car’s velocity is zero because the car is not moving.