WorksheetsSicence Unit 2 Test
Total questions: 10
Worksheet time: 3hrs 30mins
During a science investigation, a student made the device shown below. This device can best be used as a-
heater
magnet
light source
simple radio
Which form of energy is produced when a guitar string vibrates?
chemical
sound
magnetic
light
Jake plugged a toaster into an electric outlet. He put a piece of bread in the toaster and turned the toaster on. While the toaster was on, it changed the electrical energy from the outlet into other forms of energy. Which form of energy toasted the bread?
chemical
thermal
magnetic
sound
The sun provides the earth with which of the following forms of energy?
thermal and light
electrical and thermal
light and mechanical
electrical and sound
What kind of energy is produced from the candle?
light
sound and thermal
thermal
thermal and light
Which household appliance transforms electrical energy into heat energy?
calculator
gas clothes dryer
hair dryer
telephone
The picture below shows an electrical cord used on a toaster.
Why is the cord made of both plastic and copper?
The plastic is a conductor and the copper is an insulator of electricity.
The plastic and the copper are both conductors of electricity.
The plastic is an insulator and the copper is a conductor of electricity.
What would happen to this system if part B was removed?
Only the microphone would be affected.
The speakers would function at a lower level.
There would be no energy for the system to function.
Only one of the speakers would work
What force is MOST responsible for causing the car to stop?
gravity
magnetism
pushing the car
friction
The Bates are putting several large black panels on one side of the roof of their house. Water will circulate from their swimming pool through the panels and back into the pool after being warmed in the panels. What source of energy is being used to heat the water? Explain your answer.
(a)
