chapter 10 work and machines. __________ is when a force changes the motion of an object
TRANSCRIPT
Chapter 10Work and Machines
__________ is when a force changes the motion of an object.
Work
Two or more simple machines put together make a
___________.
Compound Machine
________ is the ability to do work.
Energy
A ___________ has few or no moving parts.
Simple Machine
A ball player using a ball to hit a bat is an example of _________.
Work
A rock on a hill has energy because it can ________ down
the hill.
Roll
Scissors are an example of a ___________.
Compound Machine
A machine makes work easier because it lets you change the
__________ of the force.
Direction
A ________ and a ________ are alike because they both help you
pull something up.
Pulley and Lever
It is easier to ride a bike up a winding road because it is a
________ distance, but _________ to pedal.
Longer, Easier
Fish part the water when they swim. The simple machine that
this is most like is the _________.
Wedge
A _________ is an example of a lever with the fulcrum at the end.
Wheel barrow
What simple machine is this?
Lever
What simple machine is this?
Inclined Plane
What simple machine is this?
Pulley
What simple machine is this?
Wheel and Axle
What simple machine is this?
Wedge
What simple machine is this?
Screw