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Third Grade (Grade 3) Mechanics Questions

You can create printable tests and worksheets from these Grade 3 Mechanics questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

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Grade 3 Energy and Momentum
Solar energy is an example of a non-renewable energy resources.
  1. True
  2. False
Grade 3 Forces and Motion
Speed is applied to push or pull an object.
  1. True
  2. False
Grade 3 Fluid Mechanics
A "low floater" is an object that
  1. floats above the water level.
  2. floats in the air.
  3. floats at the water level.
  4. does not float.
Grade 3 Fluid Mechanics
A "high floater" is an object that
  1. floats at the water level.
  2. floats above the water level.
  3. floats below the water level.
  4. does not float.
Grade 3 Energy and Momentum
Which of the following is NOT an example of non-renewable energy resources?
  1. Coal
  2. Natural Gas
  3. Solar
  4. Petroleum
Grade 3 Fluid Mechanics
The air inside a ball causes a pressure against the inside walls.
  1. True
  2. False
Grade 3 Forces and Motion
               is a pulling force that acts on all objects.
  1. Oxygen
  2. Gravity
  3. Force
  4. Landslide
Grade 3 Fluid Mechanics
An object must be shaped like a boat so that it can float.
  1. True
  2. False
Grade 3 Fluid Mechanics
Use "float" or "sink" to fill in the blanks.

A penny will        sink       , but an wooden stick will         float        .
Grade 3 Energy and Momentum
What is the ability to do work?
  1. sound energy
  2. potential energy
  3. energy
  4. shadow
Grade 3 Energy and Momentum
There are two basic forms of energy –           kinetic           and             potential            .
Grade 3 Forces and Motion
Name 4 forces AND tell if they are push forces, pull forces or both a push/pull force.
Grade 3 Forces and Motion
A boy throwing a ball

Force:       push       
Applying Force:      boy      
Receiving Force:       ball       
Effect on Object Receiving Force:                          ball changes direction                         
Grade 3 Forces and Motion
Newton's Third Law of Motion states that for every action there is an opposite and equal            reaction           .
Grade 3 Forces and Motion
The weight of a dog on a couch

Force:       push       
Applying Force:      dog      
Receiving Force:        couch        
Effect on Object Receiving Force:                       couch changes shape                      
Grade 3 Forces and Motion
A push or a pull is a/an         force        .
Grade 3 Forces and Motion
A change in an object's position is called          motion         .
Grade 3 Forces and Motion
How fast or slow an object is moving is its         speed        .
Grade 3 Forces and Motion
The measure of how far an object has traveled is            distance           .
Grade 3 Forces and Motion
The path a moving object follows is its             direction            .
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