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Ninth Grade (Grade 9) Forces and Motion Questions

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Grade 9 Forces and Motion
If you apply a force to an object with a known mass, what can you determine using Newton's second law?
  1. The object's acceleration
  2. The object's momentum
  3. The object's inertia
  4. The object's power
Grade 9 Forces and Motion
Which of the following is not an example of a force?
  1. tension
  2. weight
  3. friction
  4. mass
Grade 9 Forces and Motion
A moment is the product of
  1. force and speed.
  2. acceleration and perpendicular distance.
  3. perpendicular distance and force.
  4. parallel distance and weight.
Grade 9 Forces and Motion
Based on the data in the table, which of the following statements can be true about the object being measured?
Data Table - Negative Acceleration
  1. A net force is being applied in a direction opposite to its velocity.
  2. The object has an acceleration of -2 m/s/s.
  3. The graph of this object would be a straight line.
  4. All of the above are true.
Grade 9 Forces and Motion
A capital force is one that does what?
  1. Act in the direction of motion
  2. Keeps an object moving in a circular track
  3. Acts tangentially to a circular track
  4. Accelerate an object in the direction of motion
Grade 9 Forces and Motion

This question is a part of a group with common instructions. View group »

What makes the paper ball fly through the air after it is no longer touching the rubber band?
  1. the momentum of the ball
  2. the force of air resistance
  3. the force of the rubber band
  4. the efficiency of the system
Grade 9 Forces and Motion
Which of the following is not an example of motion under constant acceleration?
  1. Satellite in orbit
  2. A store moving vertically upwards
  3. The blades of windmill in motion
  4. Motion of a pendulum
Grade 9 Forces and Motion
Power = Work x Time x Distance
  1. True
  2. False
Grade 9 Forces and Motion
The amount of air resistance depends on the speed of a falling object and
  1. the mass of the object.
  2. gravitational pull of Earth.
  3. the time of day the object is falling.
  4. amount of surface area of the object.
Grade 9 Forces and Motion
The force(s) applied by a car with front wheel drive is (are)
  1. a push.
  2. a pull.
  3. a push and a pull.
  4. without friction.
Grade 9 Forces and Motion
Which of the following is not an example of a force?
  1. Tension
  2. Weight
  3. Friction
  4. Mass
Grade 9 Forces and Motion
Which of the following types of motion is predominant in the molecules of a gas sealed in a tube?
  1. rectilinear
  2. random
  3. circular
  4. oscillatory
Grade 9 Forces and Motion
Which of the following is an example of a pulling force?
  1. dragging a dog sled
  2. throwing a baseball
  3. hitting a golf ball
  4. slamming the car door
Grade 9 Forces and Motion
Which of the following is the reason for banking of racing tracks?
  1. To obtain greater speeds
  2. To prevent side-slip
  3. To maintain vertical equilibrium
  4. To prevent frictional forces
Grade 9 Forces and Motion
Torque is the product of
  1. radial distance and rotational speed.
  2. lever arm and force.
  3. mass and velocity.
  4. none of the above
Grade 9 Forces and Motion
An object is acted upon by a system of parallel forces causing the object to be in static equilibrium. Which of the following statements is not correct?
  1. The resistant of the parallel in zero
  2. The algebraic sum of all moments of the forces in zero
  3. All the parallel forces must be equal in magnitude and direction
  4. The sum of the forces in one direction must be equal to the sum of the forces in the opposite direction.
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