Everyday Energy
What kind of energy are all of these objects designed to produce:
Speaker
Alarm clock
MP3 Player
Sound energy
Which of the following is an example of energy causing motion?
A. a train sitting on a track
B. a girl pulling a wagon
C. a boy standing by a door
D. a light shining on a wall
B. a girl pulling a wagon
Name 2 things that produce light and heat.
Answers may vary. Possible answers: candle, the sun, light bulbs
A student shines a flashlight at four different surfaces:
A square mirror
A wooden board
A window
A black shirt
Which surface will reflect the MOST light?
A square mirror
How does light travel?
In a straight line
Which objects produce light energy? Select two.
lamp
mirror
water
sunglasses
television
lamp and television
A baker was making a loaf of banana bread. They mixed the ingredients together and placed the batter in the oven. Which type of energy caused the batter to turn into a loaf of bread?
Thermal
What is it called when 2 objects rub against each other, creating heat?
Friction.
Rosa placed a pencil in a clear cup of water. It looked bent when she looked at it from the side. Why did the pencil look bent?
A. The water absorbed the light
B. The water made the pencil move
C. The pencil was broken in the water
D. The light changed direction when it entered the water
D. The light changed direction when it entered the water
What kind of energy does a computer produce?
Electrical or light
Which objects produce heat energy?
chair
oven
bicycle
coffee maker
toaster
sidewalk
coffee maker, oven, and toaster
Which object uses electrical energy to produce motion?
A. a light bulb
B. a swing set
C. a ceiling fan
D. a soccer ball
C. a ceiling fan
Which activity shows heat being made by a force?
A. Melting an ice cube
B. Sitting in the sunshine
C. Swinging a string slowly
D. Rubbing two wooden blocks together
D. Rubbing two wooden blocks together
What process makes a spoon look bent in a glass of water?
Refraction
Why does a computer screen feel warm after it has been on for a long time?
A. It turns sound into energy
B. It does not have a plug
C. It reflects sunlight into the room
D. It gives off heat because it gives off light
D. It gives off heat because it gives off light
Maria turned on a flashlight. It made no noise. Which form of energy is NOT produced by the flashlight?
A.Heat
B.Light
C.Sound
D.Electrical
C. Sound
Samantha pushed a toy car across the floor. It rolled to the wall and stopped. Why did the car move at first?
A. It had sound energy
B. It created motion on its own
C. The floor gave it the energy to roll
D. Samantha gave it energy by pushing it
D. Samantha gave it energy by pushing it
A student put their hands near a light bulb and noticed it felt warm. Which statement explains why the student felt warmth?
A. The air particles near the light bulb moved more slowly.
B. Energy from the air moved into the light bulb.
C. The light bulb had both heat and light energy.
D. Light bulbs are made of a hot substance.
C. The light bulb had both heat and light energy.
Light strikes the shiny surface of a mirror. What happens to the light?
A. It is reflected
B. It is scattered
C. It is absorbed
D. It is refracted
A. It is reflected
Which is the BEST example of energy causing a change in motion?
A. a girl kicking a soccer ball
B. a pitcher holding a baseball
C. a tennis player watching a ball
D. a volleyball player sitting on a ball
A. a girl kicking a soccer ball
When you plug in an electric fan, it begins to spin and make noise. Which sentence BEST explains what happens to the energy?
A.Sound energy changes into heat energy
B.Heat energy turns into light and sound energy
C.Mechanical energy turns into electrical energy
D.Electrical energy turns into mechanical and sound energy
D.Electrical energy turns into mechanical and sound energy
A student tries three things:
1. She shines a flashlight on a book.
2. She drops a ball onto the floor.
3. She blows at a paper airplane.
Which of these are examples of energy causing motion?
A. Only 1
B. Only 2
C. Only 1 and 3
D. Only 2 and 3
D. Only 2 and 3
Carlos slid down a plastic slide at recess. When he got to the bottom, his hands felt warm. What MOST LIKELY caused this to happen?
A. His hands rubbed against the slide as he slid down
B. The wind cooled his hands as he slid down the slide
C. The sun heated the ground as he slid down the slide
D. The plastic made his hands cold as he slid down the slide
A. His hands rubbed against the slide as he slid down
Lena looked at herself in the bathroom mirror. She could clearly see her face. What happened to the light in order for her to see her face?
A. It reflected off the mirror
B. It disappeared in the mirror
C. It was absorbed by the mirror
D. It was refracted when it passed through the mirror
A. It reflected off the mirror
Jeremy's computer won't turn on. He plugged it into the wall, and it began to work again. What type of energy did his computer need to work?
A.heat
B.light
C.electrical
D.mechanical
C. electrical