speed, velocity, scalars and vectors

Front

What is speed?

Back

Speed is a scalar quantity that refers to how fast an object is moving, measured as the distance traveled per unit of time.

Front

What is velocity?

Back

Velocity is a vector quantity that describes the rate of change of an object's position, including both speed and direction.

Front

What is the difference between scalars and vectors?

Back

Scalars are quantities that have only magnitude (e.g., speed), while vectors have both magnitude and direction (e.g., velocity).

Front

How do you calculate average speed?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken.

Front

If Maya walks 400 m in 20 minutes, what is her average speed?

Back

20 m/min

Front

What two components are needed to fully describe velocity?

Back

Speed and direction.

Front

What is the formula for distance traveled when speed and time are known?

Back

Distance = Speed × Time.

Front

If David drives at 30 miles/hr for 3 hours, how far does he travel?

Back

90 miles

Front

What is the total distance traveled if an object moves 10 m West, then returns 10 m East, and finally moves 5 m East?

Back

25 meters.

Front

What is a scalar quantity? Give an example.

Back

A scalar quantity has only magnitude. Example: Speed.