Acceleration

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can be positive (speeding up) or negative (slowing down).

Front

Can an object have acceleration if it is slowing down?

Back

Yes, an object can have acceleration even if it is slowing down. This is called negative acceleration or deceleration.

Front

What does it mean when a car has no acceleration?

Back

A car has no acceleration when its speed is constant, meaning it is not speeding up or slowing down.

Front

If a car is moving at a constant speed of 80 km/h, does it have acceleration?

Back

No, the car does not have acceleration because its speed is constant.

Front

What is the acceleration of an object moving at a constant speed?

Back

The acceleration of an object moving at a constant speed is 0 m/s².

Front

How do you calculate acceleration?

Back

Acceleration can be calculated using the formula: a = (final velocity - initial velocity) / time.

Front

If a speed boat increases its speed from 0 m/s to 24 m/s in 12 seconds, what is its acceleration?

Back

The acceleration is 2 m/s².

Front

What is the unit of acceleration?

Back

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

Front

Why do we say a car accelerates when it goes around a corner?

Back

A car accelerates when it goes around a corner because it is changing direction, which is a change in velocity.

Front

What is negative acceleration?

Back

Negative acceleration, also known as deceleration, occurs when an object slows down.