Acceleration

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time.

Front

How is average acceleration calculated?

Back

Average acceleration is calculated using the formula: (final velocity - initial velocity) ÷ time.

Front

What is the unit of acceleration in the International System of Units (SI)?

Back

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

Front

If an object is moving at a constant speed, does it have acceleration?

Back

No, an object moving at a constant speed in a straight line has zero acceleration.

Front

What happens to the acceleration of an object if it speeds up?

Back

If an object speeds up, its acceleration is positive.

Front

What happens to the acceleration of an object if it slows down?

Back

If an object slows down, its acceleration is negative, often referred to as deceleration.

Front

Can an object accelerate if it is moving in a circular path at constant speed?

Back

Yes, an object can accelerate while moving in a circular path because its direction is changing.

Front

What is the acceleration of a drag racer that goes from 0 m/s to 200 m/s in 5 seconds?

Back

The acceleration is 40 m/s².

Front

What is the acceleration of a roller coaster that accelerates from 6.0 m/s to 70 m/s over 4 seconds?

Back

The acceleration is 16 m/s².

Front

What does it mean when an object has a negative acceleration?

Back

Negative acceleration indicates that the object is slowing down.