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Fourth Grade (Grade 4) Mechanics Questions

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Grade 4 Energy and Momentum
A battery has a kind of potential energy called chemical energy.
  1. True
  2. False
Grade 4 Energy and Momentum
Which of the following uses the most energy?
  1. jumping
  2. shouting
  3. writing
  4. thinking
Grade 4 Energy and Momentum
Which of the following is an example of how humans use interactions between matter and energy?
  1. doorbell buzzer
  2. clapping
  3. solar-powered calculator
  4. all of the above
Grade 4 Energy and Momentum
Energy can't be transferred from one place to another.
  1. True
  2. False
Grade 4 Energy and Momentum
Which word is a synonym for the word "change"?
  1. transferring
  2. transformation
  3. both of these
  4. none of these
Grade 4 Energy and Momentum
Every object in motion contains mechanical energy.
  1. True
  2. False
Grade 4 Energy and Momentum
Animals converting food to heat and motion is an example of one form of energy being changed to another.
  1. True
  2. False
Grade 4 Energy and Momentum
Students who are jumping are an example of kinetic energy.
  1. True
  2. False
Grade 4 Fluid Mechanics
A boat made from matter that is denser than water can float on water if it is filled with enough                .
  1. water
  2. air
  3. salt
  4. salt water
Grade 4 Energy and Momentum
Mr. Yang kicked the ball. The ball flew high and landed on to the grass. Who or what transferred the energy in to the ball?
  1. The grass
  2. The air
  3. Mr. Yang
  4. The ball
Grade 4 Energy and Momentum
Which word is a synonym for "moving"?
  1. transferring
  2. transformation
  3. both of these
  4. none of these
Grade 4 Forces and Motion
What do you call the result of a force moving a particular object over a certain distance?
  1. Electricity
  2. Energy
  3. Inertia
  4. Work
Grade 4 Forces and Motion
Water moves faster than normal in a stream during flooding. What happens to the rocks in the stream?
  1. They will change in form.
  2. They will reduce in size.
  3. They will move downstream.
  4. They will stay in the stream.
Grade 4 Forces and Motion
Who is the scientist that developed the three laws of motion?
  1. Alexander Graham Bell
  2. Benjamin Franklin
  3. Sir Isaac Newton
  4. Sir Smith Scott
Grade 4 Forces and Motion
An object is said to be in motion when it changes positions.
  1. True
  2. False
Grade 4 Energy and Momentum
When you throw a ball, potential energy becomes                  kinetic energy                 .
Grade 4 Energy and Momentum
A bicycle in motion has kinetic energy in the form of                     mechanical energy                    .
Grade 4 Energy and Momentum
If you throw a baseball and it moves, you know that you have done        work       .
Grade 4 Energy and Momentum
The mechanical energy of an object is associated with the objects'            position           and          motion         .
Grade 4 Forces and Motion
You toss a ball straight up into the air. Explain what forces act on it as it falls back to Earth.
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