Forms of Energy
Changes in Energy
Energy Transformations
Electric Circuits, Conductors, Insulators
Mix Bag
100
Which type of energy is carried as waves in vibrating matter?
What is sound energy.
100
To conserve energy, some people hang their clothes outside to air dry. Which of the following is the most optimal day to hang laundry? a. cold and rainy day b. cold and cloudy day c. warm and sunny day d. warm and cloudy day
What is a warm and sunny day
100
An electric clock in a classroom will not run if not plugged into an electric outlet. What does the clock get from the electric current from the outlet? a. batteries b. chemicals c. energy d. time of day
What is energy
100
Which of the following will cause electric charges to no longer flow through a circuit? a. A wire is replaced with a conductor b. A switch is flipped, causing the circuit to become closed. c. The circuit is changed so that the wires do not make a complete loop.
What is The circuit is changed so that the wires do not make a complete loop.
100
What is an example of a chemical change: peeling a banana, chewing a banana, or digesting a banana
What is digesting a banana
200
What form of energy cooks food in a solar cooker?
What is light energy.
200
Frank uses a bowling ball to demonstrate how energy can cause changes. Which of the following actions would NOT demonstrate a change caused by applying energy to the ball? a. He holds the bowling ball in both hands. b. He spins the bowling ball with one hand. c. He rolls the bowling ball across the floor. d. He lifts the bowling ball to place it on a shelf.
What is He holds the bowling ball in both hands.
200
Which energy transformation occurs when a fan is plugged into a wall? a. heat energy into motion energy b. electrical energy into sound energy c. energy of motion into sound energy d. electrical energy into energy of motion
What is electrical energy into energy of motion.
200
What is the purpose of the plastic coating on a wire? a. To carry electric current in a circuit b. To make the wire more flexible c. To insulate people or objects from the electric current in the wire.
What is To insulate people or objects from the electric current in the wire.
200
How do you think the particle size affects the time it will take for sugar to dissolve in water?
What is the smaller the particle the faster it dissolves.
300
What types of energy does a spring toy have as it flies through the air?
What is kinetic and potential energy
300
An electron has a negative charge. What is true about the charge of a particle that is attracted to an electron? a. It is neutral. b. It is positive. c. It is negative.
What is It is positive.
300
Which energy transformation is used to make a piece of toast in a toaster? a. heat energy into electrical energy b. electrical energy into heat energy c. light energy into electrical energy d. electrical energy into light energy
What is electrical energy into heat energy.
300
Which of the devices converts electrical energy into motion? a. light bulb b. power saw c. door buzzer
What is power saw
300
What are three types of investigation scientists can do?
What is experiments, using models, repeated observations
400
Which type of energy does the book have because it is on the self?
What is potential energy.
400
Which of these is a way that you would use the transformation of electrical energy to motion energy? a. watching TV b. taking an elevator to the top of a building c. listening to your MP3 player while walking to school d. turning on the lamp on your desk so you can see your homework.
What is taking an elevator to the top of a building.
400
An electric current runs through a doorbell buzzer, a mechanism inside vibrates back and forth and makes the doorbell ring. Which energy transformation is occuring when ringing a doorbell? a. electrical energy into heat energy and sound energy b. motion energy into electrical energy and sound energy c. electrical energy into motion energy and sound energy
What is electrical energy into motion energy and sound energy.
400
Which of these materials is an electrical conductor? a. nail b. plastic ruler c. rubber band d. toothpick
What is an nail
400
Why is a control important when doing a science experiment? a. it helps scientist share results b. it helps scientist form their first hypothesis c. it helps scientist record their repeated observations d. it helps scientist compare their results to a standard.
What is it helps scientist compare their results to a standard.
500
Which types of energy changes take place when the candle burns?
What is chemical energy changes into thermal energy and light energy.
500
How will air and water change a shiny nail? a. It will dry out the nail b. It will cause the nail to cool down. c. It will make the nail decrease in volume. d. It will cause the nail to chemically change.
What is it will cause the nail to chemically change.
500
When Susie left the bedroom, she flipped the light switch. The light bulb stopped giving off light. What caused the light bulb to go out? a. The bulb became cooler, so the light bulb stopped converting heat energy into light. b. The electric current stopped, so no more electrical energy was converted into light. c. The electric current stopped, so light energy could not be converted into electrical energy.
What is the electric current stopped, so no more electrical energy was converted into light.
500
Clayton tries to build an electric circuit using a battery, a light bulb, a paper clip, and copper wire. What will Clayton need to do to get the bulb to light up?
Draw a picture of these.
500
Which system of measurement is generally used by scientist? a. customary b. English c. Imperial d. Metric
What is Metric
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