Lab: Newton's Laws of Motion — Unit test Answers

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

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?

In which of these can convection not occur?

Evan drew a diagram to illustrate radiation.

The diagram shows currents that form as water is heated.

Heat transfer between two substances is affected by specific heat and the

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

The diagram shows movement of thermal energy.

A student heats a liquid on a burner. What happens to the portion of liquid that first begins to warm?

Which best describes convection?

A stovetop burner on medium reaches 95°C. Which will also receive a flow of heat directly from the burner?

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.

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

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

Which describes how radiation moves?

Which material is typically used as a thermal insulator?

Which is required for convection to occur?

Yami pours powdered cocoa mix into milk and stirs it. Then she microwaves the mixture for three minutes. When she takes the cup out, the handle is very warm. Steam rises from the cup, so she blows it before taking a sip. In which part of this scenario can convection be best observed?

In a convection current, as the temperature of a fluid increases, what property of the fluid decreases?

Which demonstrates conduction?