Unit 4: Speed, velocity and Acceleration

Front

What is speed?

Back

Speed is the distance traveled per unit of time, without considering the direction.

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction.

Front

What is acceleration?

Back

Acceleration is the rate at which an object changes its velocity.

Front

How does acceleration occur?

Back

Acceleration occurs when an object speeds up, slows down, or changes direction.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (only magnitude), while velocity is a vector quantity (magnitude and direction).

Front

If a car travels 60 miles in 1 hour, what is its speed?

Back

The speed is 60 miles per hour (mph).

Front

If a cyclist is moving at 15 m/s to the east, what is this an example of?

Back

This is an example of velocity.

Front

What happens to the velocity of an object when it accelerates?

Back

The velocity of an object increases or decreases depending on the direction of the acceleration.

Front

What is a scalar quantity?

Back

A scalar quantity is a physical quantity that has only magnitude, such as speed.

Front

What is a vector quantity?

Back

A vector quantity is a physical quantity that has both magnitude and direction, such as velocity.