Unit 11 Acceleration Checkpoint

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

How do you calculate acceleration?

Back

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

Front

What is the unit of acceleration?

Back

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

Front

If a dog runs with an initial speed of 8 m/s and stops in 4 seconds, what is its acceleration?

Back

-2 m/s².

Front

A car moving at 4 m/s accelerates at 2 m/s² for 6 seconds. What is its final speed?

Back

16 m/s.

Front

What does it mean when an object has no acceleration?

Back

An object has no acceleration when it is moving at a constant speed in a straight line or is at rest.

Front

In which scenario does a car have no acceleration?

Back

A car with the cruise control set at 80 km/h going down a straight highway.

Front

Why does a car accelerate when rounding a corner at a constant speed?

Back

Its direction changes, which means it is accelerating even if the speed is constant.

Front

What is the formula to find final velocity when acceleration is known?

Back

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

Front

If a box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest, what is the acceleration?

Back

9 m/s².