Speed, Velocity, Acceleration

Front

What is speed?

Back

Speed is the distance traveled per unit of time, measured in units like meters per second (m/s) or kilometers per hour (km/h).

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction, such as 55 m/h south.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity over time, indicating how quickly an object speeds up or slows down.

Front

How do speed and velocity differ?

Back

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

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

If Kira jogs 72 m in 36 s, what is her average speed?

Back

2 m/s.

Front

What is the average speed of a car traveling 715 km in 6.5 hours?

Back

110 km/h.

Front

What does it mean to accelerate?

Back

To accelerate means to increase or decrease the speed of an object or change its direction.

Front

If you slow down on your bicycle, what type of acceleration is that?

Back

Negative acceleration (deceleration).

Front

What is a scalar quantity?

Back

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