Unit 2 Test Review
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  • Question 1
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    Q.

    1. An object in motion stays in motion and an object at rest stays at rest until….

    answer choices

    a. A constant force is required to keep it in constant motion

    a. An unbalanced force acts on it

    a. A balanced force acts on it

    a. Objects in motion naturally come to rest.

  • Question 2
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    Q.

    1. Inertia can be measured by using

    answer choices

    Mass

    Velocity

    Mass x Velocity

    Force

  • Question 3
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    Q.

    Which object has more inertia?

    answer choices

    A car rolling at 5 m/s

    A bowling be acting all rolling at 1 m/s

    A ping pong ball rolling at 2 m/s

    A tractor trailer moving at 2 m/s

  • Question 4
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    Q.

    Two books are laying on a tabletop. Without picking them up how could you determine which has the greatest inertia.

    answer choices

    Give each one a push, the one that moves the easiest has less mass thus less inertia

    Look at them, the larger one will have more inertia

    Neither one has inertia they are not moving

    It is impossible to tell

  • Question 5
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    Q.

    In order for a 1200 kg car to maintain a velocity of 4 m/s in a frictionless world how much force must be applied.

    answer choices

    4800 N

    300 N

    0 N

    4 N

  • Question 6
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    Q.

    If Shane and Susan both push on a box with a force of 25N in opposite direction, what will happen to the box?

    answer choices

    The box will not move

    The box will slide toward Shane

    The box will slide toward Susan

    The box will be perpendicular to both Shane and Susan.

  • Question 7
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    Q.

    A 5.5 kg lunch box is pushed across a lunch table. The acceleration of the box is 4.2 m/s2. What was the net force applied to the box?

    answer choices

    1.3 N

    1.31 N

    9.7 N

    23.1 N

  • Question 8
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    Q.

    Beth exerts 14N of force to propel a 4.5 kg bowling ball down the lane. Describe how the ball will travel.

    answer choices

    The bowling ball accelerates toward the pins at 3.1 m/s2.

    The inertia increases to 6.75 m/s2 as the ball approaches the pins.

    It descends on the pins at the end of the lane with a velocity of 17 m/s2.

    The ball shows the result of unbalanced forces with a momentum of 9.6 m/s2.

  • Question 9
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    Q.

    A person is on a raft. The person exerts a force on the raft, causing the raft to move. The person also moves in the opposite direction.

    Which statement BEST explains why the person and the raft moved in opposite directions?

    answer choices

    Second law of motion

    Action and reaction forces

    Person wanted the raft to move

    Force is the product of mass and acceleration

  • Question 10
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    Q.

    Two trucks, as seen above, were driving down a two lane road and were involved in a head-on crash. How does the force experienced by the driver of each truck compare?

    answer choices

    The forces on the two drivers are equal

    The force on the faster truck is greater

    We cannot calculate the force on the drivers.

    The force on the driver of the larger truck is less than the driver of the smaller truck.

  • Question 11
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    Q.

    Based on the picture below, which force would represent the force of gravity?

    answer choices

    Force A

    Force B

    Force C

    Force D

  • Question 12
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    Q.

    1. Consider a bullet shot from a gun. The acceleration of the bullet is _________________.

    answer choices

    Greater than the acceleration of the gun

    Equal to the acceleration of the gun

    Equal but opposite to the acceleration of the gun

    Less than the acceleration of the gun

  • Question 13
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    Q.

    Joe pushes Bill, who is sleep. Bill

    answer choices

    will inevitably push Joe when he wakes.

    pushes Joe, but not as hard.

    does not push Joe.

    pushes Joe equally as hard.

  • Question 14
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    Q. What Unit do we measure Force in? 
    answer choices
    Newtons
    Joules
    Force
    Don't know
  • Question 15
    900 seconds
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    Q.
    answer choices
    1st
    2nd
    3rd
    law of motion
  • Question 16
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    Q. With unbalanced forces, the object will move in the direction that the _______ force is being applied.
    answer choices
    larger 
    smaller 
    equal 
    less
  • Question 17
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    Q. A 20 kg bike accelerates at 10 m/s2.  what was the force
    answer choices
    25 Newtons
    20 Newtons
    200 Newtons
    10 Newtons
  • Question 18
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    Q. Newton's third law states that any action will have a(n) _______ and ______ reaction
    answer choices
    Equal and similar
    Equal and opposite
    Equal and different
    Greater and opposite
  • Question 19
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    Q. 8 N to the left , and 4 N to the right. Find the net force. Is this balanced 
    answer choices
    12 N Right  No
    4 N Left  No
    12 N Right  Yes
    4 N Left  Yes
  • Question 20
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    Q. You hit a wall with a stick.  The equal but opposite reaction is _____
    answer choices
    the wall pushes against you
    the stick pushes against you
    you push against the stick
    the wall pushes against the stick
  • Question 21
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    Q.

    The Coffee cup in the picture is resting on a table. What force(s) are missing from the free body diagram?

    answer choices

    No forces are missing

    The normal force from the table pushing the cup up.

    The normal force form the table pushing the cup down.

    The friction force from the table pushing the cup left and right.

  • Question 22
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    Q.

    A squirrel sits on the ground and eats a donut. If the ground pushes up on the squirrel with a force of 11 N, The squirrel and donut together weigh ...

    answer choices

    less than 11 N

    Exactly 11 N

    More than 11 N

  • Question 23
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    Q.

    If you lean against a wall, the wall pushes back on you with a(n) weaker force.

    answer choices

    True

    False

  • Question 24
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    Q.

    Your car has a mass of 2500 kg and a force of 5000 N. How fast will it accelerate?

    answer choices

    20 m/s2

    0.5 m/s2

    2 m/s2

    120 N

  • Question 25
    30 seconds
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    Q.

    Find how much force the man will need to exert to move the car.

    answer choices

    5000 N

    50 N

    20,000 N

    500 N

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