Want to see correct answers?
Login or join for free!
  Physics Worksheets
Looking for Physics worksheets?
Check out our pre-made Physics worksheets!
Share/Like This Page
Filter By Grade

You are browsing Grade 9 questions. View questions in All Grades.

Kindergarten Grade 1 Grade 2 Grade 3 Grade 4 Grade 5 Grade 6 Grade 7 Grade 8 Grade 9 Grade 10 Grade 11 Grade 12 College Graduate

Browse Questions

Ninth Grade (Grade 9) Mechanics Questions

You can create printable tests and worksheets from these Grade 9 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.

Previous Page 8 of 16 Next
Grade 9 Forces and Motion
This force causes objects to wear out, creates heat, opposes motion, and can be reduced with the use of lubricants.
  1. gravitational force
  2. frictional force
  3. normal force
  4. tensional force
Grade 9 Forces and Motion
What is the invisible force of attraction between masses?
  1. remote-sensing
  2. free-fall
  3. gravity
  4. ultraviolet radiation
  5. ozone concentration layer
  6. none of the above
Grade 9 Forces and Motion
If a ball rolls down an inclined plane and picks up a speed of 4 m/s each second it rolls, its acceleration is
  1. one half of 4 m/s.
  2. one half of 4 m/s squared.
  3. 4 m/s squared.
  4. 10 m/s squared.
Grade 9 Forces and Motion
Why does a dropped feather hit the ground later than a rock dropped at the same time?
  1. The weight of the rock
  2. The mass of the rock
  3. The air resistance on the feather
  4. Feathers are designed for flight
Grade 9 Forces and Motion
Which of the following does NOT require direction?
  1. Velocity
  2. Acceleration
  3. Force
  4. Speed
  5. Displacement
Grade 9 Energy and Momentum
Which of the following is an example of work (using the scientific definition)?
  1. A weight lifter holding a heavy bar above his head.
  2. A custodian pushing a broom across the gym.
  3. A student thinking of the answer to a test.
  4. A little brother pulling on a door that won't move because you locked it.
Grade 9 Forces and Motion
An object with a mass of 1 kilogram on Earth
  1. has less mass on the Moon.
  2. has the same mass on the Moon.
  3. has more mass on the Moon.
  4. weighs the same everywhere.
Grade 9 Forces and Motion
The force of gravity acting on a 2-kg melon is
  1. 2 kg.
  2. 10 N.
  3. 20 N.
  4. more than 20 N.
Grade 9 Forces and Motion
Which of the following does not involve any friction?
  1. A bicycle rolling down a hill
  2. A baseball player sliding into 2nd base
  3. A diver falling through the air to a pool
  4. All of the above experience some friction.
Grade 9 Forces and Motion
What is the formula for calculating Newton's second law?
  1. f=mp
  2. m=fa
  3. f=ma
  4. m=fp
Grade 9 Forces and Motion
For an object to travel at a constant velocity, which of the following MUST be true.
  1. A constant force is being applied
  2. Any forces being applied must be balanced
  3. There can be no force of any kind applied to the object
  4. The object has positive acceleration
Grade 9 Forces and Motion
                 is the force that opposes motion between two surfaces that touch each other.
  1. Friction
  2. Rolling friction
  3. Sliding friction
  4. Static friction
Grade 9 Forces and Motion
Which of the following is NOT a vector quantity?
  1. Velocity
  2. Acceleration
  3. Force
  4. Speed
Previous Page 8 of 16 Next