Speed, Velocity, Acceleration

Front

What is speed?

Back

Speed is the distance traveled per unit of time, typically measured in 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.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can occur due to a change in speed or direction.

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 average speed?

Back

Average speed = Total distance / Total time.

Front

If a car travels 150 km in 3 hours, what is its average speed?

Back

Average speed = 150 km / 3 h = 50 km/h.

Front

What does a negative acceleration indicate?

Back

Negative acceleration indicates that an object is slowing down.

Front

What is the unit of acceleration?

Back

The unit of acceleration is meters per second squared (m/s²).

Front

If a cyclist increases their speed from 5 m/s to 15 m/s, what type of motion is this?

Back

This is an example of positive acceleration.

Front

What happens to the velocity of an object if it changes direction but maintains the same speed?

Back

The velocity changes because velocity includes direction.