Unit 4 Re-Test

Front

What is speed?

Back

Speed is a ratio of distance traveled over time, typically measured in units like miles per hour (mph).

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction, such as 15 mph south.

Front

What does a horizontal line on a distance-time graph indicate?

Back

A horizontal line indicates that the distance traveled is constant over time, meaning there is no change in distance as time progresses.

Front

What is a force?

Back

A force is defined as a push or a pull acting on an object.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, indicating how quickly it speeds up or slows down.

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 formula for calculating speed?

Back

Speed = Distance / Time.

Front

What is the unit of measurement for force?

Back

The unit of measurement for force is the Newton (N).

Front

What is an example of friction?

Back

Friction is the force that opposes motion between two surfaces in contact, such as a car's tires on the road.

Front

What happens to an object in motion if no net force acts on it?

Back

If no net force acts on an object in motion, it will continue to move at a constant velocity.