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Force and Simple Machines

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  • the girl is pushing a box up a ramp. How would the motion change if the girl used a greater force in the same direction
    the box would stop moving
    the direction of motion would change
    the speed of the box would increase
    the mass of the box would decrease
  • the rate at which an object moves
    force
    distance
    speed
    mass
  • an inclined plane that is wrapped around a center rod
    screw
    lever
    inclined plane
    wheel and axle
  • the center point of a lever
    inclined plane
    fulcrum
    axle
    wedge
  • a rake that is used to clear leaves is a
    wedge
    lever
    wheel and axle
    inclined plane
  • a tool that makes work easier
    simple machine
    force
    fulcrum
    pulley
  • which would be the best simple machine to use to slice onions
    inclined plane
    pulley
    screw
    wedge
  • Which of these simple machines is also an inclined plane
    fulcrum
    pulley
    screw
    wheel and axle
  • in science, which of the following is an example of work
    carrying a heavy box across a room
    reading a book
    lifting a chair off the floor
    going to a job
  • the amount of gravity pulling down on an object
    volume
    mass
    force
    weight
  • when one force is greater than its opposite force and causes movement
    net force
    unbalanced forced
    work
    balanced forces
  • which of the following is not a lever
    a wheelbarrow
    a broom
    a ramp
    a baseball bat
  • A bar that moves on a fulcrum
    lever
    inclined plane
    wedge
    wheele and axle
  • how many forces must be applied to make a simple machine work?
    one
    two
    three
    four
  • the use of force to move an object is
    force
    gravity
    friction
    work
  • forces on an object that are equal in size and opposite in direction
    friction
    unbalanced forces
    simple machine
    balanced forces
  • a wheel with a rod attached to the center of it
    wheel and axle
    inclined plane
    pulley
    screw
  • a push or pull which causes movement or change in movement or shape
    fulcrum
    balanced force
    unbalanced force
    friction
  • a force that opposes motion and acts on two objects that are touching
    work
    balanced forces
    gravity
    friction
  • which of these is an example of a force being applied
    reading a book
    watching tv
    standing at the top of a hill
    pulling a wagon
  • an inclined plane with two sloped sides
    wheel and axle
    wedge
    lever
    screw
  • a simple machine with a sloped side
    lever
    screw
    wedge
    inclined plane
  • a wedge is a simple machine that makes work easier by
    pushing material outward
    holding things up
    lifting things
    turning things
  • a pulley is a simple machine used to make work easier by
    pushing material outward
    holding things together
    lifting things
    turning things
  • which is an example of a wedge
    an elevator
    a wheel and axle
    a bottle opener
    a doorstop
  • a push or a pull
    force
    fulcrum
    mass
    motion
  • which of these simple machines will not work without a fulcrum
    pulley
    lever
    wedge
    inclined plane
  • a _________________ does work using one movement
    simple machine
    fulcrum
    friction
    force
  • an axe can be used to split wood. The blade is a simple machine called
    a wedge
    a lever
    an inclined plane
    a screw
  • which object will require the most force to toss it 3 feet
    large boulder
    small wooden block
    plastic disk
    tiny metal screw bolt
  • a force of attraction between two objects even if they are not touching
    balanced forces
    work
    friction
    gravity
  • one or more wheels with a rope around it for lifting
    fulcrum
    wheel and axle
    screw
    pulley
  • a force that opposes motion between two things that are touching
    friction
    gravity
    unbalanced forces
    balanced forces
  • forces that cause a change in motion
    gravity
    unbalanced forces
    balanced forces
    work
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