Force and Motion
10 months ago
missybshort
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16 QuestionsShow answers
  • Question 1
    30 seconds
    Q.

    The ram on a crane uses the force of kinetic energy to push a spike into the ground. From which position should the ram be released to have the greatest kinetic energy when it hits the spike?

    answer choices

    1

    2

    3

    4

  • Question 2
    30 seconds
    Q.

    Some new cars use special braking systems to recover energy when the brakes are applied. This energy is stored in special batteries and is used to power the electric motor. What type of energy are the brakes storing as they slow down the car?

    answer choices

    gravitational

    kinetic

    potential

    thermal

  • Question 3
    30 seconds
    Q.

    During an investigation on energy, Seth rolls marbles of four different masses down a ramp. Which size marble will have the greatest kinetic energy when it reaches the bottom of the ramp?

    answer choices

    2 grams

    3 grams

    5 grams

    6 grams

  • Question 4
    30 seconds
    Q.

    Look at the drawing below of a bouncing ball. Which correctly identifies the sequence of the types of energy shown in the drawing?

    answer choices

    kinetic, potential, potential, kinetic

    potential, kinetic, kinetic, potential

    kinetic, kinetic, potential, kinetic

    potential, potential, kinetic, kinetic

  • Question 5
    30 seconds
    Q.

    A crane uses a pulley system to make work easier. Which statement BEST explains how the pulley system in a crane makes work easier?

    answer choices

    The pulley system reduces the mass of the object being lifted.

    The pulley system reduces the volume of the object being lifted.

    The pulley system reduces the amount of force needed to lift an object.

    The pulley system reduces the distance the object being lifted needs to move.

  • Question 6
    30 seconds
    Q.

    Which is most likely needed when describing the change in position of an object?

    answer choices

    initial speed

    direction change

    reference point

    constant rate

  • Question 7
    30 seconds
    Q.

    A brick is resting on a level, smooth surface. When a student applies a horizontal force of 5 N to the brick, the force of friction on the brick is also 5 N. Which statement BEST describes the effect of these two forces on the brick?

    answer choices

    The net force on the brick is 0 N, and the brick begins to move.

    The net force on the brick is 0 N, and the brick remains at rest.

    The net force on the brick is 10 N, and the brick begins to move.

    The net force on the brick is 10 N, and the brick remains at rest.

  • Question 8
    30 seconds
    Q.

    Which statement best explains why a car that is rolling on a level surface will eventually come to a stop?

    answer choices

    Frictional forces oppose the motion of the car.

    Forward motion slowly runs out as energy is expended.

    The natural state of an object is to be at rest.

    Inertia acting on an object will dissipate.

  • Question 9
    30 seconds
    Q.

    When astronauts walked on the Moon, they used weighted boots to help them walk due to the lower gravitational pull. What difference between Earth and the Moon accounts for the difference in gravity?

    answer choices

    density

    diameter

    mass

    volume

  • Question 10
    30 seconds
    Q.

    Which of these is an example of Newton’s first law of motion?

    answer choices

    A baseball hit with a baseball bat travels faster than a bowling ball hit with the same force.

    A basketball bounces on the ground with the same force that the ground pushes up on the ball.

    A person jumps to a dock from a boat, and the boat moves away from the dock.

    A person standing on a bus moves backward when the bus suddenly moves forward.

  • Question 11
    30 seconds
    Q.

    Two toy cars are traveling on a track. Thirteen minutes after they start, how do the speeds of the cars compare?

    answer choices

    Both cars are traveling at the same speed.

    Both cars have stopped moving on the track.

    Car 1 is moving faster.

    Car 2 is moving faster.

  • Question 12
    30 seconds
    Q.

    This is a graph of the motion of a small boat traveling at a constant speed. How far will the boat travel in 15 hours?

    answer choices

    10 km

    15 km

    25 km

    30 km

  • Question 13
    30 seconds
    Q.

    This graph shows the motion of an object as it moves away from a point and then back to its starting point. Which graph shows the total distance traveled by the object?

    answer choices
  • Question 14
    30 seconds
    Q.

    Four students went on a 3-kilomater hike. Each student was hiking a different speed. The distance the students hiked during the first 30 minutes is shown in each graph. If each student continued at the same speed, which graph shows the hiker that finished the 3-kilometer hike first?

    answer choices
  • Question 15
    30 seconds
    Q.

    The graph shows the motion of a student walking at different speeds. During which time interval does the student walk with a negative acceleration?

    answer choices

    0-2 seconds

    2 - 4 seconds

    4- 8 seconds

    8-12 seconds

  • Question 16
    30 seconds
    Q.

    Which graph could represent a car moving at a constant speed in a forward direction?

    answer choices
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