Energy Test Review

Mrs. Wartman wants to make a brownie sundae for dessert. She adds chocolate ice cream to the top of a warm brownie. The ice cream starts to melt before she can take a bite. What form of energy is causing a change to the ice sundae?

• Chemical

• Electrical

• Thermal

• Sound

Tags

NGSS.MS-PS1-4

Which statement best explains the way an oven uses electricity to bake food? A

• Electrical energy is changed into light energy and motion energy.

• Heat flows through the electric current and changes into light in the wires.

• Electric current changes into motion energy that turns on the heating element.

• An oven uses heat energy that is converted from electric current.

Which of the following best describes the energy transformation shown in the picture?

• Electrical energy is being changed into motion.

• Light energy is being changed into sound.

• Mechanical energy is being changed into motion.

• Electrical energy is being changed into sound.

Which list has everything needed to make a complete circuit that will ring a bell?

• bulb, wire, bell, buzzer

• wire, battery, bulb, wire cutter

• bell, wires, battery, switch

• switch, bell, insulator, wire

Tags

NGSS.MS-ETS1-1

The balloons shown are part of an investigation on how positive and negative charges affect balloons. What are the charges on the set of red and blue balloons?

• They are both uncharged.

• They have opposite charges.

• They are both positive.

• They are both negative.

Tags

NGSS.MS-PS2-3

When a battery-operated toy stopped working, the old batteries were replaced with new ones. After replacing the batteries, the toy still did not work. What is the most likely reason the toy is still not working?

• Electricity is flowing through a closed circuit.

• Electricity is not flowing through a closed circuit.

• The toy needs to be plugged into an outlet.

• The switch is connected to two wires in the electric circuit.

Which statement is true about energy?

• Energy always changes to light.

• Energy always changes to heat.

• Energy never moves.

• Energy can cause motion or create change.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS2-1

Which sentence best describes the energy transformation that takes place when you use a blender to make a smoothie? A. Mechanical energy is transformed into light energy. B. Electrical energy is transformed into heat energy. C. Mechanical energy is transformed into thermal energy. D. Electrical energy is transformed into mechanical energy.

• Mechanical energy is transformed into light energy.

• Mechanical energy is transformed into thermal energy.

• Electrical energy is transformed into mechanical energy.

• Electrical energy is transformed into heat energy.

Tags

NGSS.MS-PS3-5

Which of these items transforms electrical energy into motion?

• electric fan

• toaster

• light bulb

• computer

Which list names all of the objects that are conductors of electricity?

• wire, tube, toothpick

• straw, wire, nail

• wire, nail, safety pin

• straw, tube, toothpick