Speed, Velocity, Acceleration

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

True or False: Changing the speed and changing the direction of your bicycle are both examples of acceleration.

Back

True

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is the unit of speed in the metric system?

Back

The unit of speed is meters per second (m/s) or kilometers per hour (km/h).

Front

If a car travels 100 kilometers in 2 hours, what is its speed?

Back

Speed = 100 km / 2 hr = 50 km/hr.

Front

What does a speedometer measure?

Back

A speedometer measures the speed of a vehicle.

Front

What is constant speed?

Back

Constant speed means that an object covers equal distances in equal intervals of time, regardless of how small the time intervals are.

Front

What is the formula for calculating acceleration?

Back

Acceleration = (Final Velocity - Initial Velocity) / Time.

Front

What is a vector quantity?

Back

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