Midterm Study Guide 8th 2024-2025

Front

What is the independent variable in an experiment?

Back

The independent variable is the factor that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

What is a force?

Back

A force is a push or pull that can cause an object to move, stop, or change direction.

Front

What happens to the temperature of a sample when its molecules speed up?

Back

The temperature of the sample increases.

Front

Can a magnetic force attract and repel an object at a distance?

Back

True, a magnetic force can attract and repel objects without direct contact.

Front

How do you calculate the average of a set of numbers?

Back

To calculate the average, add all the numbers together and then divide by the total number of values.

Front

What is the dependent variable in an experiment?

Back

The dependent variable is the factor that is measured or observed in an experiment, which is affected by the independent variable.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion.

Front

What is potential energy?

Back

Potential energy is the stored energy of an object due to its position or state.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.