Unit 2 Acceleration Review

Front

What is acceleration?

Back

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

Front

How do you calculate average acceleration?

Back

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

Front

If a bus accelerates from rest to 14 m/s in 4 seconds, what is its average acceleration?

Back

3.5 m/s².

Front

What does a negative velocity indicate?

Back

A negative velocity indicates that the object is moving in the opposite direction of the defined positive direction.

Front

What does a positive acceleration indicate when the velocity is negative?

Back

It indicates that the object is slowing down.

Front

What does a negative acceleration indicate when the velocity is negative?

Back

It indicates that the object is speeding up in the negative direction.

Front

What is the unit of acceleration?

Back

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

Front

What is an example of acceleration?

Back

An example of acceleration is a car increasing its speed from 30 m/s to 50 m/s.

Front

What is an example of no acceleration?

Back

An example of no acceleration is a car moving at a constant speed of 60 m/s.

Front

If a car starts from rest and reaches 20 m/s in 3.5 seconds, what is its acceleration?

Back

5.7 m/s².