Forms of Energy 10.1
A golfer swinging his golf club is an example of which of the following forms of energy?
The energy of motion
A baseball player swinging a bat is an example of which form of energy?
Energy of motion
Jacob stretched a rubber band between his index fingers. When his friend plucked it, a sound was made. Which is the best explanation for why sound was heard?
The rubber band vibrates the air
Hannah turned the heater on in her room and closed the door. After an hour, she realized it was too hot, so she turned off the heater and opened the door. Her brother’s room is next to hers. What can Hannah’s brother expect to find when he returns to his room?
His room will be warmer
Which of the following items would feel the hottest if left outside in the sun for the same amount of time?
A. A wooden broom
B. A plastic shovel
C. A rubber glove
D. An aluminum can
An aluminum can
Adam was kicking a football. The fans cheer loudly. Which form of energy is cheering?
Sound energy
Explain how energy and work are related.
Energy is the ability to do work
Mona hits a tambourine with her hand and makes it vibrate. She then puts the tambourine on a table and stops the vibration. What happened to the sound of the tambourine?
The sound stops because the vibrations have stopped
Shawn was sitting on the couch watching television. He got up and went to get something to eat. His dad came in and sat on the couch where Shawn had been sitting. What did his dad notice?
The spot where Shawn had been sitting was warm
Samantha was going to take a cake out of the oven. She wanted to use something to keep her hands from burning. What would protect her hands from the heat of the oven?
Cloth gloves or oven mitts
Lauren is sitting by a campfire. What forms of energy is she experiencing?
Hint: There's 2!
Both heat and light energy
Victor was playing with dominos. He touched the first domino and it fell into the one behind it. The whole row of dominos fell as the dominos fell into each other. Where did the energy transfer from?
The energy from Victor’s hand transferred to the domino causing it to fall into the next domino
The music teacher asked her class how she could create a high pitched sound with her guitar strings. Which is the correct answer?
A. Pluck the thickest string
B. Pluck the thinnest string
C. Pluck all the strings at once
D. Tap on the side of the guitar
Pluck the thinnest string
Amanda made herself some soup for lunch. She stirred her soup with her metal spoon and turned to get something to drink. What did Brianna notice when she picked up her spoon to eat her soup and what had caused the change?
The spoon was hot because she left it in the soup
Jane wants to make a cup of hot tea. Which of these materials could she use to stir sugar into the tea so the heat will not flow up her hand?
A. A metal knife
B. A steel rod
C. A wooden stirring stick
D. A iron spoon
A wooden stirring stick
Ms. Martin’s class is playing the drums in music class. What type of energy is this and how does it travel?
Sound energy and it travels in waves
Freda went bowling to a bowling alley. She saw lots of bowling pins falling down. What explains how the pins fell?
A. The pins fell because people were using energy to jump up and down
B. The pins fell because people were rolling a ball that transferred its energy to the pins
C. The pins fell because the pins transferred their energy to the ball
D. The pins fell because they didn’t have the energy to stand
The pins fell because people were rolling a ball that transferred its energy to the pins
Which of the following places would allow you to travel in complete silence?
A. The ocean
B. A solid wooden room
C. Outer space
D. An underground cave
Outer space
Why does a freeze pop melt when you hold it in your hand?
Heat moves from your hand to the freeze pop
Brittany wants to know why her pots and pans have plastic handles on them. Her friends gave her these four answers. Which one is the best answer?
A. Plastic is a good conductor of heat
B. Plastic is an insulator
C. Plastic is less expensive than metal
D. Plastic is easier to clean
Plastic is an insulator
Naomi is trying to figure out why light, heat and electricity are all called “energy”. Which of these is the best explanation?
A. They can all be created by machines
B. They are all useful in people’s lives
C. They all move through space but are not forms of matter
D. They can all cause motion or create change
They can all cause motion or create change
Which of the following statements is NOT true about the term energy?
A. It can cause something to move
B. It gets stronger as you use it longer
C. It is the ability to cause a change
D. It is the ability to do work
It gets stronger as you use it longer
Douglas was at the Lowry Park Zoo. He heard a tiger roar. What did the pitch of his voice sound like and why?
A.The pitch was high because his vocal cords vibrated quickly
B. The pitch was low because his vocal cords vibrated quickly
C. The pitch was high because his vocal cords vibrated slowly
D. The pitch was low because his vocal cords vibrated slowly
The pitch was low because his vocal cords vibrated slowly
Ron was asked to explain how heat transfers. Which statement would be the best explanation?
Heat is the flow of energy from a warmer object to a cooler object
Christina was doing an investigation using a metal butter knife and a plastic knife. She placed a piece of butter on the tip of each knife and placed the handles of the knives into a beaker of hot water. She observes that the butter fell off of the metal knife before it fell off of the plastic knife. How could you explain why the butter fell of the metal knife first?
The metal knife is a good conductor of heat and the plastic knife is a poor conductor of heat