Energy Sources and Sound Pitch Concepts

Rashaan is making breakfast for his family. He pours freshly squeezed orange juice into a glass, cooks eggs on the stove, and toasts bread in a toaster plugged into a wall outlet. What is the source of the energy for the toaster?

• light energy

• thermal energy

• chemical energy

• electrical energy

Lenny uses two different pipes to observe a lit candle.

Which of the following statements would most likely be true?

• Lenny would be able to observe the lit candle using only pipe 1

• Lenny would be able to observe the candle using only pipe 2

• Lenny would be able to observe the lit candle using pipe 1 and pipe 2

• Lenny would not be able to observe the lit candle using either pipe 1 or pipe 2

Tags

NGSS.MS-PS4-2

On his walk home from school Woody observed the Sun in the sky. When he entered his house he turned on a lamp, and there was a fire burning in the fireplace. What do the Sun, the fire, and the light bulb in a lamp have in common?

• They all only give off light energy.

• They all give off both heat and light.

• 1. They are all powered by heat energy.

• They all give off both heat and electricity.

Ms. Hudson is rubbing a piece of sandpaper over wood to smooth it down. What will most likely happen to the temperature of the wood as she smooths it with the sandpaper?

• the wood will become cooler

• the wood will become warmer

• the wood will decrease in temperature

• the wood will stay the same temperature

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Noah wants to make a high pitch sound and a low pitch sound when he strikes two metal bars with a stick. He has already made one 5 inch metal bar. What should he do if he wants to make a second metal bar which will make a higher pitch sound?

• Make a metal bar that is 3 inches long.

• Make a metal bar that is 5 inches long.

• Make a metal bar that is 7 inches long.

• Make a metal bar that is 9 inches long.

Tags

NGSS.MS-PS4-1

Gustave uses a bowling ball to demonstrate how energy can cause changes. Which of the following actions would NOT demonstrate a change caused by Gustave applying energy to the ball?

• He holds the bowling ball in both hands.

• He spins the bowling ball with one hand.

• He rolls the bowling ball across the floor.

• He lifts the bowling ball to place it on a shelf.

Tags

NGSS.MS-PS3-5

Which of the following is an example of energy causing change?

• a blender sitting on a counter

• chess pieces resting on a board

• a light switch in the off position

• an ice cube melting on the sidewalk

Tags

NGSS.MS-PS1-4

Addison made a sandcastle at the beach. A few hours after making the sandcastle a wave came in and swept it away. Where did the energy which moved the castle come from?

• the energy of moving air

• the energy of moving water

• sound energy from the wave

• thermal energy from the Sun

Tags

NGSS.MS-PS3-5

Which statement best describes the primary and secondary energy transformations that occur when you turn on a television?

• electrical energy changes into light energy and then into sound energy

• electrical energy changes into sound energy and then into chemical energy

• electrical energy changes into energy of motion and then into heat energy

• 1. electrical energy changes into chemical energy and then into thermal energy

Tags

NGSS.MS-PS3-5

Nico went outside and observed when clouds are blocking his view of the Sun the temperature feels cooler. Why does the temperature feel cooler when clouds block his view of the Sun?

• The clouds are prepared to start raining.

• Cold air from the clouds reaches the ground.

• The Earth’s heat can’t find its way to the Sun.

• Less heat from the Sun is reaching the ground.