Physics - Chapter 2 Test Review

Front

What is acceleration?

Back

Acceleration is defined as the CHANGE in velocity over time.

Front

How do you calculate acceleration?

Back

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

Front

If a golf ball accelerates at 15 m/s² and changes its velocity from 0 m/s to 50 m/s, how long does it take to accelerate?

Back

3.3 seconds.

Front

What does a steeper slope on a distance vs. time graph indicate?

Back

The steeper the slope, the faster the speed.

Front

What is the unit of acceleration?

Back

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

Front

What is the formula for calculating distance when acceleration is involved?

Back

Distance (d) can be calculated using the formula: d = initial velocity * time + 0.5 * acceleration * time².

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is the acceleration of a dog that runs with an initial speed of 7.5 m/s and slides to a stop in 15 seconds?

Back

-0.5 m/s².

Front

What does a negative acceleration indicate?

Back

Negative acceleration indicates that an object is slowing down.

Front

What is the significance of the term 'initial velocity'?

Back

Initial velocity is the speed of an object at the start of a time interval.