Professions Part 1 Answers

What is the unit of measure for energy?

A powered winch is used to pull a sailboat to shore. The winch uses a 900 W motor.If the motor is used for 30 s, how much work does it do? (Power: P = W/t)

What is the source of almost all energy on Earth?

Which material most likely gets the warmest when placed in the Sun?

In which of these can convection not occur?

Adita lifts a book from the floor, carries it across the room, and places it on a high shelf. When is Adita doing work on the book?

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

Which refers to the thermal energy that flows from one substance to another when the substances differ in temperature?

A thermogram taken outside a house shows high amounts of thermal energy around the windows but not around the roof.Which conclusion supports the thermogram?

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

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

A scientist designed a foam container to help keep frozen foods from melting. Which best explains how the foam works?

Which shows the formula for converting from degrees Celsius to degrees Fahrenheit?

The diagram shows currents that form as water is heated.

Which accurately completes the statement?Conduction involves the transfer of electric charge or ___________ due to the movement of particles.

Nuclear reactions in a reactor produce a lot of thermal energy. That energy then flows and warms up water, which boils and produces steam. The steam then turns turbines that generate electricity.

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

Which of these results in kinetic energy of an object?

What is needed for work to be done?

Which term is the product of force and distance?