Acceleration Practice

Front

What is acceleration?

Back

Acceleration is the change in velocity over time.

Front

What is the SI unit for acceleration?

Back

The SI unit for acceleration is m/s².

Front

How do you calculate acceleration?

Back

Acceleration = (final velocity - initial velocity) / time.

Front

If a car's speed increases from 10 m/s to 30 m/s in 4 seconds, what is its acceleration?

Back

Acceleration = (30 m/s - 10 m/s) / 4 s = 5 m/s².

Front

True or False: Acceleration only occurs when an object speeds up.

Back

False. Acceleration can also occur when an object slows down (deceleration).

Front

What is the acceleration of a freely falling object after 5 seconds?

Back

About 50 m/s² (assuming acceleration due to gravity is approximately 9.8 m/s²).

Front

What does a negative acceleration indicate?

Back

Negative acceleration indicates that an object is slowing down.

Front

What is the formula for calculating final velocity?

Back

Final velocity = initial velocity + (acceleration × time).

Front

If an object is moving at a constant speed, what is its acceleration?

Back

The acceleration is 0 m/s².

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).