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quiz 1 unit 8

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  • a car traveling at 45 mph going north is an example of
    velocity
  • what is force
    the ability to do work
  • a compass pointing north is an example of magnetism or gravity
    magnetism
  • when does friction decrease
    when the texture of an object is smooth and the surface area touching an object decreases
  • what is a push or pull
    force
  • what do we call the time it takes for an object to go a certain distance called
    speed
  • What is the force between any two object with mass called
    gravity
  • the place or object another object is moved to is called the____ point
    reference
  • If two dogs are tugging on a rope and one dog gets the rope from the other dog the forces are balanced. true or false
    false
  • a ramp is an example of which simple machine
    inclined plane
  • give an example of a lever
    seesaw
  • When a book falls to the ground it is an example of gravity. True or false
    True
  • a car turning right is an example of
    acceleration
  • give an example of a pulley
    flagpole
  • a car turning left at a stop light is an example of acceleration or velocity
    acceleration
  • what is the force between one object moving or rubbing against another object
    friction
  • if two people are arm wrestling and one person pushes the others over is it balanced or unbalanced
    unbalanced
  • give an example of a wheel and axle
    door handle
  • what is velocity
    speed in a certain direction
  • a ball rolling across the grass is an example of friction or muscular
    friction
  • a girl pusshing her wagon is an example of
    muscular
  • Venus has a smaller mass than earth, so you would weigh less on venus because of gravity. true or false?
    true
  • give an example of balanced forces
  • would a basket full of groceries or an empty basket have more friction when pushed
    full basket
  • what is a change in velocity called
    acceleration