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Twelfth Grade (Grade 12) Forces and Motion Questions

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Grade 12 Forces and Motion

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Weight is a measure of                                                   .
  1. your mass
  2. the gravitational attraction between you and Earth
  3. mechanical equilibrium
  4. all of these
  5. none of these
Grade 12 Forces and Motion

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

You have two objects. One object weighs 50 N on the Moon. One object weighs 50 N on Earth. Which object would have the greatest mass?
  1. They have the same mass.
  2. The one on Earth.
  3. The one on the Moon.
Grade 12 Forces and Motion
What is the definition for the term "vector"?
  1. a quantity having direction as well as magnitude, especially as determining the position of one point in space relative to another
  2. the total displacement (Δd), change in position , divided by the total time for that displacement.
  3. they can provide tons of information of an objects motion in graph
  4. A and C
Grade 12 Forces and Motion
According to Newton’s laws of motion, an object set in motion remains in motion unless a force acts on it. If you suspend an object from a string and make it swing, the object will swing for a while, then slow down and stop. Why does the suspended object stop swinging?
  1. It is because an object at rest remains at rest unless a force acts upon it.
  2. It is because the mass of the object is too small to maintain the motion.
  3. It is because energy is the ability to do work.
  4. It is because gravity is pulling it toward the Earth.
  5. It is because energy of motion is converted to heat through friction with air.
Grade 12 Forces and Motion
Which of the following is an example of scalar quantity?
  1. Has direction and magnitude
  2. Displacement
  3. Position
  4. Distance
Grade 12 Forces and Motion
What is the correct definition for the term "position"?
  1. the change in position of an object
  2. the distance and direction of an object from a reference point.
  3. an amount o f space between two things or people .
  4. none of the above
Grade 12 Forces and Motion
What is the correct definition for the term "displacement"?
  1. an amount of space between two things or people
  2. the change in position of an object
  3. the distance and direction of an object from a reference point
  4. none of the above
Grade 12 Forces and Motion
When you whirl a rock at the end of a string, it will follow a circular path. What will happen to the rock if the string breaks?
  1. The rock will fly off in a straight line.
  2. The rock will immediately fall to the ground.
  3. The rock will continue to move in a circular path.
  4. The rock will float 0.5 seconds before falling
Grade 12 Forces and Motion
A car with mass m travels around a curve with velocity v. What do you know about the centripetal force if the velocity triples?
  1. Nothing
  2. The centripetal force triples
  3. The centripetal multiplies by 9
  4. The centripetal force divides by 3
Grade 12 Forces and Motion
You want to launch a satellite into Earth orbit. You already know Earth’s mass and the satellite’s mass. What additional information do you need to calculate the gravitational force that will act on it?
  1. The height it will have
  2. Earth's distance from the Sun
  3. The acceleration of gravity at the surface
  4. The satellite's size
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