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Three of the following simple machines are basically the same. The one that does NOT belong with the group is the ____________.
changes thermal energy into mechanical energy
compound machine
1
increase force
chemical
inclined plane
heat pump
wedge
A machine that changes only the direction of a force has a mechanical advantage of __________________.
changes thermal energy into mechanical energy
compound machine
1
increase force
chemical
inclined plane
heat pump
wedge
A winding mountain road is an example of a (n) ____________.
changes thermal energy into mechanical energy
compound machine
1
increase force
chemical
inclined plane
heat pump
wedge
A lever with a mechanical advantage greater than 1 is used to ________________.
changes thermal energy into mechanical energy
compound machine
1
increase force
chemical
inclined plane
heat pump
wedge
When two or more simple machines work together, they are called a (n) __________________.
changes thermal energy into mechanical energy
compound machine
1
increase force
chemical
inclined plane
heat pump
wedge
A device that can be used for cooling and heating is a _______________.
changes thermal energy into mechanical energy
compound machine
1
increase force
chemical
inclined plane
heat pump
wedge
A green plant has _________________ energy.
changes thermal energy into mechanical energy
compound machine
1
increase force
chemical
inclined plane
heat pump
wedge
A heat engine _____________________.
changes thermal energy into mechanical energy
compound machine
1
increase force
chemical
inclined plane
heat pump
wedge
Check it!