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Ninth Grade (Grade 9) Physics Questions

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

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Grade 9 Forces and Motion
The weight of an object
  1. stays the same wherever the object is
  2. changes if the object is in motion
  3. stays the same as long as the object is in motion
  4. changes if the force of gravity changes
Grade 9 Heat Transfer
Which of the following would make a good conductor?
  1. jacket
  2. rubber tire
  3. metal pan
  4. oven mit
Grade 9 Forces and Motion
Horizontal lines on a velocity/time graph show
  1. constant acceleration
  2. no motion
  3. positive acceleration
  4. negative acceleration
Grade 9 Forces and Motion
Grade 9 Simple Machines
How much work would be required to lift a 25 kg object to a height of 20 meters?
  1. 500 Joules
  2. 1.25 Joules
  3. 245 Newtons
  4. 1.25 Newtons
  5. 4900 Joules
Grade 9 Quantum Physics and the Atom
Grade 9 Waves and Sound
Grade 9 Quantum Physics and the Atom
What does the mass number of an atom tell you about the atom?
  1. number of electrons
  2. number of protons
  3. number of neutrons
  4. number of protons and neutrons
Grade 9 Magnetism and Electricity
Grade 9 Simple Machines
A device that does work with only one movement is called a
  1. pulley
  2. compound machine
  3. force
  4. simple machine
Grade 9 Quantum Physics and the Atom
Which of the following would be an isotope of aluminum?
  1. Atom A: mass number=24, atomic number=13
  2. Atom B: mass number=24, atomic number=12
  3. Atom C: mass number=26, atomic number=14
  4. Atom D: mass number=22, atomic number=11
Grade 9 Quantum Physics and the Atom
What is the mass of a proton or a neutron?
  1. 1 amu
  2. 2 amu
  3. 1 gram
  4. 0.34 amu
Grade 9 Quantum Physics and the Atom
Where are electrons located in an atom?
  1. nucleus
  2. center
  3. electron cloud
  4. everywhere
Grade 9 Quantum Physics and the Atom
Which force is responsible for holding the nucleus of an atom together?
  1. Electromagnetic force
  2. Strong nuclear force
  3. Weak force
  4. Gravitational force
Grade 9 Forces and Motion
If the net force on an object is zero, the the object has?
  1. reaction forces
  2. action forces
  3. balanced forces
  4. unbalanced forces
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
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