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WorksheetsQuiz review
Total questions: 15
Worksheet time: 8mins
You kicked a skateboard to cause it to roll on a level driveway, and it eventually stopped moving. Which of the following best explains why it stopped?
The skateboard's energy was eventually destroyed.
The skateboard created new energy that caused it to stop rolling.
The skateboard's energy transformed into heat and sound energy.
The skateboard should have kept rolling forever. It must have hit a rock or another object that caused it to stop.
Which of the following is an example of chemical energy being transformed into mechanical energy?
A ball bouncing up and down
A motorcycle that uses gas being driven
An electric blender making a smoothie
Wind causing a turbine to spin
Which of the following energy transformations takes place when an electric can opener is spinning?
mechanical energy to electrical energy
electrical energy to chemical energy
chemical energy to mechanical energy
electrical energy to mechanical energy
When you plug your phone into an electrical outlet to charge its battery, not all of the electrical energy goes into your phone’s battery. What happens to rest of the electrical energy?
A. The rest is destroyed.
B. The rest is transformed into nuclear energy.
The rest is transformed into thermal energy and given off to the environment.
The electricity creates another type of energy.
Which of the following is the best example of chemical energy being transformed into electrical energy and then to sound energy?
An electric blender is turned on.
A battery-powered radio is turned on.
A person blows a whistle.
A ball rolls off a table.
Coal, natural gas, and oil can be burned to fuel power plants and machinery. Which of the following energy transformations occurs when coal, natural gas, or oil are burned?
chemical to thermal
thermal to chemical
thermal to electrical
electrical to thermal
Mr. Jordan’s class did an experiment to see which type of paper will make a paper airplane fly the farthest. They used three different types of paper to build airplanes of the same design: one with the usual copy paper, one with construction paper, and one with notebook paper. They threw each plane three times and measured the distance each plane traveled. What was their control group?
airplane made with copy paper
type of paper
distance the airplane traveled
design of the paper airplane
Ron wanted to test what makes paper airplanes fly farther. He decided to make three paper airplanes, each with a different type of paper and a different design. He threw each plane three times and measured the distance they flew. What is wrong with his procedure?
Nothing is wrong with his procedure.
He doesn’t have a dependent variable, so he won’t know what to measure.
He is testing two variables at once, so he won’t know which one is impacting the outcome.
He has too many constants, so he won’t know what is staying the same during the experiment.
Hank wants to find out if pH of water affects the growth of rye grass seeds. He has 3 identical pots and fills them all with 100 ml of the same type of soil. He puts 10 seeds in each pot. Each day, he waters pot 1 with 10 ml of regular water with a pH of 7, pot 2 with 10 ml of acidic water with a pH of 5, and pot 3 with 10 ml of basic water with a pH of 9. He measures the growth of each seed for 3 weeks. What is his dependent (outcome/measure) variable?
growth of rye grass seeds
pH of water
amount of soil
pot 1
Which of the following ensures that scientific knowledge is solidly supported and accepted by the scientific community?
Scientists regularly share, debate, and confirm each other’s results.
Scientists hide their results so other scientists cannot steal their work.
Scientific knowledge cannot change once it is published in journals and textbooks.
It is illegal for scientific knowledge to be argued or challenged, so people are forced to accept it.
What is the difference between a scientific theory and a scientific law?
A theory becomes a law once proven.
A law is a fact, and a theory is a guess.
A law describes what happens, and a theory explains why it happens.
A theory describes what happens, and a law explains why it happens.
Electrical → Mechanical → Sound
Which device were the students most likely observing?
Chemical Energy is transferred to _____ Energy.
