Forms of Energy
Light
Circuits
Force and Motion
Safety
100
Name 2 ways mechanical energy is used.
(answers may vary--things falling, walking, water rushing)
100
What is refraction?
The bending of light as it passes from one medium to another (air to water).
100
The battery is the _________ of the circuit
power source
100
True or False: You should only repeat an experiment once to make sure it's accurate.
False
100
What is the first thing you do when entering a science lab?
Wait for teacher directions.
200
Name something that uses the same energy a radio uses. What energy does it use?
electrical energy; (answers may vary--computer, electronic)
200
True or False Light always travels in a straight line until it strikes an object.
True
200
What happens when a switch is open?
The circuit is incomplete and will not work.
200
True or False: When experimenting, you should only change one variable.
True
200
Name one instance of when you should wear goggles in Science?
(Answers may vary--working with glass, chemicals, melting things, crushing rocks)
300
Name one thing that requires only mechanical energy to work.
(answers may vary--golf club, bat)
300
What is reflection?
Light bouncing off an object.
300
How do you connect wires to the battery to create a complete circuit?
One wire goes to the positive end and the other wire to the negative end.
300
How does the amount of force affect the distance an object moves?
The greater the force, the further the distance.
300
The information collected during a science investigation is called___________.
data
400
What energy do wind turbines use? What energy do wind turbines produce?
use-mechanical produce-electrical
400
Explain how a lense works.
Lenses bend light or cause it to change directions which makes objects appear larger, smaller, or broken.
400
How could you make a circuit more powerful?
Add more batteries or power source
400
You are testing how the mass of different toy cars affect the distance traveled by sending cars down a ramp. What is the variable you are changing? A. The surface the car travels on B. The mass of the car C. The steepness of the ramp
The mass of the car; everything else stays the same.
400
What system of measurement do scientists use internationally?
The metric system
500
Name an item that produces thermal energy. Name an item that produces sound energy. Name an item that uses electrical energy.
(answers may vary) thermal--fire, oven, microwave, stove sound-- musical instruments electrical--electronics, flashlights
500
Draw a picture using arrows of reflection and refraction.
(Answers may vary)
500
Draw a complete circuit with at least 2 light bulbs.
(Answers may vary)
500
A student used a book to prop up a ramp, rolled a marble down it, and measured how far the marble traveled. Then the student used 4 books to prop up a ramp and repeated the experiment. The student did the experiment again after using 8 books to prop up the ramp. What were they testing for? A. How does the mass of the marble affect the distance traveled? B. How does the surface of the ramp affect the distance traveled? C. How does the incline of the ramp affect the distance traveled?
C. How does the incline of the ramp affect the distance traveled?
500
What science tool is usually tall and measures volume in milliliters? It can be used to find displacement!
A graduated cylinder
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