8th Grade Review #2

Front

What is speed?

Back

Speed is the distance traveled per unit of time, measured in meters per second (m/s). It does not have a direction.

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction, also measured in meters per second (m/s).

Front

What is the difference between speed and velocity?

Back

Velocity has a direction associated with it, while speed does not.

Front

What is a control group in an experiment?

Back

A control group is a group in an experiment that does not receive the treatment or intervention, used for comparison.

Front

What is an experimental group?

Back

An experimental group is a group in an experiment that receives the treatment or intervention being tested.

Front

What instrument is used to measure mass accurately?

Back

A triple-beam balance is used to measure mass accurately.

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from one location and transported to another, often by wind or water.

Front

Give an example of erosion.

Back

Wind blowing sand on a beach is an example of erosion.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, measured in meters per second squared (m/s²).

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.