Midterm Review

Front

What does a velocity vs time graph indicate when the line is sloping downwards?

Back

The object is slowing down.

Front

What does a velocity vs time graph indicate when the line is flat (horizontal)?

Back

The object is moving at a constant velocity.

Front

What is the equation to calculate momentum?

Back

p = mv

Front

What two factors does momentum depend on?

Back

Mass and velocity.

Front

In a velocity vs time graph, what does a line that is sloping upwards indicate?

Back

The object is speeding up.

Front

What does a velocity vs time graph indicate when the line is at zero?

Back

The object is not moving.

Front

What is the unit of momentum?

Back

Kilogram meter per second (kg·m/s).

Front

If an object has a mass of 2 kg and a velocity of 3 m/s, what is its momentum?

Back

p = mv = 2 kg * 3 m/s = 6 kg·m/s.

Front

What does the area under a velocity vs time graph represent?

Back

The displacement of the object.

Front

What is the relationship between mass, velocity, and momentum?

Back

Momentum is directly proportional to both mass and velocity.