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Seventh Grade (Grade 7) Mechanics Questions

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Grade 7 Forces and Motion
A force is a                .
  1. push or pull
  2. weight
  3. momentum
Grade 7 Forces and Motion
To accelerate means to                 .
  1. increase speed
  2. decrease speed
  3. change direction
  4. all of the above
Grade 7 Energy and Momentum
This is the sum of the kinetic energy and the potential energy in the particles that make up a material.
  1. Thermal Energy
  2. Thermal Conductor
  3. Temperature
  4. Heat
Grade 7 Energy and Momentum
A beating heart is an example of which form of energy?
  1. potential
  2. kinetic
Grade 7 Forces and Motion
A push or a pull is called                .
  1. wheel and axle
  2. fulcrum
  3. load
  4. force
Grade 7 Forces and Motion
The strength of the gravitational force between two objects depends on the objects'
  1. masses and distance between them.
  2. weights and accelerations.
  3. masses and gravity.
Grade 7 Forces and Motion
The force which causes a plane to move forward is called                .
  1. lift
  2. thrust
  3. gravity
  4. none of these
Grade 7 Forces and Motion
Which best describes the motion of the object recorded in data table?
Data Table - Negative Acceleration
  1. It does not move.
  2. It maintains a constant speed.
  3. It undergoes positive acceleration.
  4. It undergoes negative acceleration.
Grade 7 Energy and Momentum
What is energy?
  1. Electrons that move through a wire.
  2. A push or a pull.
  3. When energy changes from one form to another.
  4. The ability to do work.
Grade 7 Forces and Motion
What is the formula for calculating speed?
  1. Time/Distance
  2. Distance x Time
  3. Distance/Time
  4. Frequency x Time
Grade 7 Forces and Motion
Speed is equal to distance divided by time.
  1. True
  2. False
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