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Eleventh Grade (Grade 11) Forces and Motion Questions

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Grade 11 Forces and Motion
When an object is in free fall,                         .
  1. its speed stays the same
  2. it decelerates
  3. it accelerates
  4. none of the above
Grade 11 Forces and Motion
Velocity is                                     .
  1. the slope of a linear graph
  2. acceleration divided by displacement
  3. speed with direction
  4. the same in all reference frames
Grade 11 Forces and Motion

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

v=Δdt is the equation to calculate
  1. acceleration.
  2. speed.
  3. velocity.
  4. slope.
Grade 11 Forces and Motion
A book rests on a level desktop. Which force is equal in magnitude to the normal force exerted on the book?
  1. The force of static friction
  2. The force of kinetic friction
  3. The gravitational force exerted by the desktop on the book
  4. The weight of the book
Grade 11 Forces and Motion
When a 100-N force acts horizontally on an 8.0-kg chair, the chair moves at a constant speed across the level floor. Which statement has to be true?
  1. The chair accelerates at 12.5 m/s^2
  2. The applied force is greater than the frictional force.
  3. The friction force is 100 N
  4. There is no friction between the floor and chair
Grade 11 Forces and Motion
A block is placed on an inclined plane and remains stationary. A student claims, "The block remains stationary because as gravity tries to pull the block down down the ramp, the block exerts an equal and opposite force on itself up the ramp." Is the student's claim correct? Justify your answer.
  1. No. Newton's third law states the block cannot exert a force on itself.
  2. No. Newton's first law states the block's inertia must cause it to move down the ramp.
  3. Yes. Newton's third law states the block must exert a force equal and opposite to gravity.
  4. Yes. Newton's first law states the block must remain stationary unless pushed.
Grade 11 Forces and Motion
If a net force diagram is drawn, such as shown, wherein the Fnorm at A =-(Fg) at C, what do you know about the object?
Free Body Diagrams 4
  1. The object is accelerating in the direction of the Fapp at B because there is no opposing force to B, and Fapp at B>0N.
  2. The object is accelerating in the opposite direction of Fapp at B because forces act in equal but opposite pairs.
  3. The object is not moving because the Fnet=Fnorm+Fg=0N.
  4. The object is accelerating in the direction of the Fapp at B because the opposing Ffric must be negligible, and Fapp at B>0N.
Grade 11 Forces and Motion
Acceleration describes the rate of change in                .
  1. position
  2. velocity
  3. mass
  4. gravity
Grade 11 Forces and Motion
A 1500-kg car traveling along a road is hit by a 0.1-kg rock that creates a small crack in the car's windshield. Which of the following describes the interaction between the windshield and the rock?
  1. The car exerts a force on the rock, but the rock does not exert a force on the car.
  2. The rock exerts a force on the car, but the car does not exert a force on the rock
  3. The car exerts a force on the rock, and the rock exerts a force on the car. The two forces are not equal in magnitude
  4. The car exerts a force on the rock, and the rock exerts a force on the car. The two forces are equal in magnitude.
Grade 11 Forces and Motion
Torque is a measure of a force's tendency to produce                  .
  1. linear motion
  2. freefall motion
  3. rotational motion
  4. momentum
Grade 11 Forces and Motion
The word rate is a clue that something is being                 time.
  1. divided by
  2. multiplied by
  3. added to
  4. subtracted from
Grade 11 Forces and Motion
Two rocks are thrown at the same time with the same speed. One is thrown directly downward while the other is thrown straight up. Which statement correctly compares their speeds when they hit the ground?
  1. The rock thrown straight up hits the ground at a faster speed.
  2. The rock thrown directly downward hits the ground at a faster speed.
  3. Both rocks hit the ground at the same speed.
  4. There is not enough information to compare their speeds.
Grade 11 Forces and Motion
Which of the following two quantities are vectors?
  1. acceleration and deceleration
  2. mass and gravity
  3. force and velocity
  4. speed and time interval
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