Unit Test — Unit test Answers

Which two types of potential energies would be types of mechanical energies?

Which is occurring when work is being done?

What is the source of almost all energy on Earth?

Which set of terms best defines what affects kinetic energy and potential energy, respectively?

Simone created a chart to summarize the energy transformations that take place when energy from the wind is used to generate electricity.Which best completes the chart?

Seema knows the mass of a basketball. What other information is needed to find the ball’s potential energy?

If the kinetic and potential energy in a system are equal, then the potential energy increases. What happens as a result?

When Javier touches a hot mug of tea, energy is transferred from the surface of the mug to his hand. What kind of energy is this?

When a spring is compressed, the energy changes from kinetic to potential. Which best describes what is causing this change?

The table shows information about four students who are running around a track. Which statement is supported by the information in the chart?

As a person pushes a box across a floor, the energy from the person’s moving arm is transferred to the box, and the box and the floor become warm. During this process, what happens to energy?

When a person strikes and lights a match, potential energy in the match is transformed into which types of energy?

What is the unit of measure for energy?

The diagram shows a ball resting at the top of a hill.

During nuclear fission and fusion, what is matter that seems to disappear actually converted into?

Four people make observations recorded in the table.Which best describes what the observations have in common?

Olivia is on a swing at the playground.

How does work affect energy between objects so it can cause a change in the form of energy?

Johanna is studying what happens to the energy as a ball rolls down a ramp. What is one form of energy that she is studying?

The human body stores chemical energy from digested food. Some of the chemical energy is converted into mechanical energy when the body moves. Which statement is best supported by this information?