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WorksheetsUnit 1 Review
Total questions: 12
Worksheet time: 8mins
There are two claims. One is if a solar panel is covered by trees, some people say it will not function.The second is, if a solar panel is in direct sunlight, more people believe it will function efficiently. Which statement supports the correct claim?
The solar panel should be in the shade because solar panels use wind energy.
The solar panel should be in direct sunlight because they convert solar energy to electricity.
The solar panel will function in the shade or in the sunlight because they just need to be outside.
Your science class builds a circuit by connecting a light bulb and a battery. The class connects these items with copper wire. What energy transformation is happening?
Solar to electric
Electric to light
Thermal to electric
Electric to motion
Ms Mandon and Ms Bond take a road trip to go watch LSU play football. The drive was 6 hours long. Ms Mandon filled the gas tank with fuel. Ms Bond was on the aux so that they could listen to music on the drive. It was also really hot outside so they made sure to keep the air conditioning on the whole drive. When they finished their drive the hood of the car felt really hot. Which statement explains how energy was transferred in the car?
The cars motion energy is transferred to sound energy.
The cars electric energy transfers to light energy.
The cars motion energy transfers to sound and thermal or heat energy.
Kunira wants to build a hover board that has no negative effects on the environment. Which energy source should they choose and why?
Kunira should use fuel from a gas station because a power plant creates no pollution.
Kunira should use wind turbines because they hurt many birds.
Kunira should use a solar panel to charge the hover board because it can collect energy from the sun which is a renewable resource.
Kunira should use coal because it is not a big deal if we breathe in toxins.
Ms Jones wants to plug in 3 electrical devices to charge. She plugs in her ipad and it starts charging. She plugs in her apple watch charger and it starts charging. She then plugs in her phone charge and all of the devices stop charging. What happened?
Ms Jones plug in the charger wrong.
The sun isn’t shining so there was no solar energy for the devices.
The system was overloaded with electrical devices so it didn’t work.
Mr Johnson is wanting to install a different power source and heard that we suggested wind power and solar energy to Ergstown. He wants to know why we chose these two sources of energy and what makes them similar. What should we say?
Both are nonrenewable and take up land.
Both are renewable and limited when they are available depending on the weather.
Both are renewable and always available
What devices prove the claim that electricity can be converted to light energy and sound energy when they are connected to electrical source?
Lamp → light, doorbell → sound
Toaster → thermal, computer → light
Phone → sound, timer → sound
Mr Hills wants to go camping but he is scared of the dark. He is going to bring beaucoup flashlights. He knows that he needs to make sure he also has enough batteries. What energy forms are being converted in a flashlight?
Stored light energy in the battery is converted into more light energy through the bulb.
Electrical energy is used to plug in the flashlight
Chemical energy stored in the battery is converted to electricity then the electricity is converted to light energy.
KeMike is trying to teach Armon about what devices transfer electrical energy into heat energy. Armon keeps burning his hands because he doesn’t know the electrical energy can be transferred to thermal or heat energy. What devices should KeMike point out? Circle the three best answers.
Hair dryer
Microwave
Oven
iPhone
TV
Seanae was playing basketball with her sisters last weekend. What happens when she bounces the basketball with force?
The ball will move faster.
The ball will change speed and direction during the collision.
The ball will only change direction.
Your oven converts solar energy into heat energy to make the s'mores. This is a picture of one of the solar ovens. Sarah, one of the group members, said she thought they should cover the bottom of the box with black paper and leave the aluminum foil up above. What do you think? Is Sarah correct? Why or why not?
No. The top and bottom should be covered with aluminum foil to reflect the rays of the sun.
No. The bottom and sides of the box should be covered with rolled up newspapers to help insulate the box.
Yes. A black bottom will absorb more heat energy when the sunlight is reflected into the box by the foil.
Which oven is more energy efficient?
Solar Oven
Electric Oven
