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15 questions
The batteries of a flashlight contain
chemical
thermal
kinetic
The ability to cause change in matter is called
elecromagnet
friction
energy
Sound energy is a type of _____________ energy
kinetic
potential
Olivia is combing her hair. After a while, she notices that the comb attracts the hairs on her head. Which explanation BEST describes why the hairs are attracted to the comb?
Combing the hairs caused them to lose their static charge.
Combing the hairs caused the comb to lose its static charge.
Combing the hairs gave them a charge that is opposite the charge on the comb.
Combing the hairs gave them a charge that is the same as the charge on the comb.
You rub two balloons on your hair on a dry day. Your hair is attracted to both balloons. Then you bring the balloons near one another. How would you describe what happens to the balloons?
They repel one another
They attract one another
They neither repel nor attract
Which is NOT something that energy can do?
change an object's temperature
be completely used up
change into other forms of energy
What type of energy changes take place when a candle burns?
chemical energy changes into thermal and light energy
electrical energy changes into light energy and chemical energy
kinetic energy changes into light and thermal energy
What types of energy does the toy oven use to bake the cakes?
Light and sound
Electrical and thermal
Thermal and mechanical
Mechanical and electrical
What form of energy does the sun give?
sound and thermal
light and thermal
mechanical and light
thermal and mechanical
Protons have a __________ charge
negative
neutral
positive
Electrons have a ____________ charge.
negative
neutral
positive
Neutrons have a _____________ charge.
negative
neutral
positive
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