Front

Heat flows in which direction? Options: from solid objects to liquids, from larger objects to smaller objects, from warmer objects to cooler objects, from more dense objects to less dense objects

Back

from warmer objects to cooler objects

Front

Which of the following materials would be a poor conductor of electricity? aluminium, copper, rubber, steel

Back

rubber

Front

Fireworks convert chemical energy into which of the following kinds of energy? Options: solar energy and sound energy, thermal energy and light energy, electrical energy and light energy, nuclear energy and kinetic energy

Back

thermal energy and light energy

Front

Megan wants to determine if an electrical circuit has electricity flowing through it.
Which of the following evidence is proof that the circuit has an electrical current? Options: The circuit is a closed loop, A light bulb is lit in the circuit, The circuit's switch is in the closed position, Wires in the circuit are made of conducting material

Back

A light bulb is lit in the circuit

Front

Which of the following lists the forms of energy that electricity can be transformed into? Options: heat, kinetic, light, and sound energy, chemical, heat, light, and solar energy, heat, kinetic, nuclear, and sound energy, gravitational, kinetic, solar, and sound energy

Back

heat, kinetic, light, and sound energy

Front

Which of the following statements about heat energy is true? Options: Heat usually flows from colder to warmer objects, Heat is attracted to solid objects more than gases, Heat is attracted to liquids less often than solids, Heat flow can cause materials to change temperature

Back

Heat flow can cause materials to change temperature

Front

Which of these materials would be the best insulator? Options: aluminum, glass, gold, silver

Back

glass

Front

Why does the wire of Derrick's bedroom lamp have a plastic covering?

Back

The plastic is an insulator to protect people from the electricity.

Front

When a radio is turned on, what energy transformation occurs?

Back

Electrical energy is changed to sound energy

Front

What purpose do batteries have in an electrical circuit?

Back

They convert chemical energy to electrical energy.