Speed, Velocity and Acceleration

Front

What is speed?

Back

Speed is the distance traveled per unit of time, typically measured in miles per hour (mph) or meters per second (m/s).

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction. It includes both the magnitude (speed) and the direction of motion.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It occurs when an object speeds up, slows down, or changes direction.

Front

Why does a car accelerate when it goes around a corner?

Back

A car accelerates when it goes around a corner because it is changing direction, even if its speed remains constant.

Front

What happens to the velocity of an object when it changes direction?

Back

The velocity of an object changes when it changes direction, even if its speed remains the same.

Front

If a person walks at a constant speed but changes direction, what type of motion are they exhibiting?

Back

They are exhibiting acceleration because their velocity is changing due to the change in direction.

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

Can an object be moving at a constant speed but still be accelerating?

Back

Yes, an object can be moving at a constant speed but still be accelerating if it is changing direction, such as in circular motion.

Front

What is an example of acceleration in everyday life?

Back

An example of acceleration is a car speeding up at a traffic light or a cyclist going faster downhill.

Front

How is acceleration calculated?

Back

Acceleration is calculated by the formula: a = (final velocity - initial velocity) / time.