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Mechanics Questions - All Grades

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Grade 8 Forces and Motion
If two forces act on an object in the same direction, the net force is the
  1. difference of the two forces.
  2. sum of the two forces.
  3. only one of the forces acts on the object.
  4. neither force can affect the object.
Grade 5 Forces and Motion
The force that works against motion is                .
  1. friction
  2. newton
  3. direction
  4. acceleration
Grade 8 Energy and Momentum
Any energy that is stored is called                 energy.
  1. kinetic
  2. cooking
  3. potential
  4. thermal
  5. sound
  6. electrochemical
Grade 6 Energy and Momentum
Kinetic energy is the energy of                .
  1. time
  2. motion
  3. distance
  4. matter
Grade 3 Forces and Motion
What is the force that pulls objects to the center of Earth called?
  1. motion
  2. friction
  3. gravity
  4. acceleration
  5. force
Grade 7 Forces and Motion
The best definition of force is                             .
  1. a push or pull
  2. stored energy
  3. energy in motion
  4. anything that takes up space
Grade 5 Forces and Motion
Gravity and friction are examples of                .
  1. motions
  2. simple machines
  3. forces
  4. distances
Grade 4 Forces and Motion
Motion is
  1. the push or pull of an object.
  2. a force that works against motion.
  3. a model built by an engineer.
  4. when an object changes position.
Grade 3 Forces and Motion
This is required to move an object.
  1. motion
  2. friction
  3. gravity
  4. force
  5. acceleration
Grade 8 Forces and Motion
The acceleration of an object is directly proportional to the force acting on it and inversely proportional to its mass.

Which law matches the description?
  1. Newton's 2nd Law of Motion
  2. Newton's 3rd Law of Motion
  3. Newton's 1st Law of Motion
Grade 6 Forces and Motion
This type of force affects two objects that are touching each other.
  1. net
  2. friction
  3. gravity
  4. newtons
Grade 3 Forces and Motion
When something changes position, it is in                .
  1. motion
  2. friction
  3. gravity
  4. acceleration
  5. force
Grade 10 Energy and Momentum
What is the difference between kinetic energy and potential energy?
  1. kinetic energy is stored energy that has the capacity to do work, and potential energy is the energy of motion
  2. kinetic energy is energy that an object possesses as a result of its location, and potential is the same as heat energy
  3. kinetic energy can be converted into various forms of energy, whereas potential energy can only be transformed into heat energy
  4. kinetic energy is energy of a moving object, whereas potential energy is energy possessed by matter as a result of its location or structure
  5. kinetic energy can be created or destroyed, while potential energy can be created and destroyed
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