3rd Grade Science - Questions on Simple Machines
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A simple machine makes work easier because using it —
(2010 test question)- takes less force to move something heavy
- changes the weight of something heavy
- improves the way something looks
- lets something become a different shape
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Which of these is an example of a lever?
(2008 test question) -
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Which of these shows a pulley?
(2007 test question) -
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A student wants to look under a heavy rock. Which simple machine would be BEST to use to lift the rock?
(2007 test question)- Wheel and axle
- Lever
- Inclined plane
- Screw
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Which of these simple machines does this model represent?
(2010 test question)- A screw
- A wedge
- A lever
- A pulley
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The picture shows a jar with its lid. What kind of simple machine is a jar lid?
(2009 test question)- Ramp
- Pulley
- Screw
- Wedge
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Which machine uses a wheel and axle?
(2009 test question) -
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Which kind of work is made easier by the wheels of a wagon?
(2009 test question)- Pulling a heavy load
- Lifting a wide load
- Dividing a large load
- Holding a small load
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Which of these is a compound machine that is a lever and a wedge working together?
(2009 test question) -
