Question

Simple machines make work easier for the person doing the work. Machines help us do work by multiplying the force that we

apply. A wedge is a simple machine that multiplies applied force. Machines also help us do work by changing the direction of
the force that we apply. A lever is an example of a simple machine that can help us multiply force and may change direction
of a force.
Which is the BEST concluding sentence for this paragraph?
A)
A wedge can be used as a doorstop to keep a door open or closed.
B)
C)
A lever can be used to pry open doors in an emergency or to get nails out
of a board.
The wedge and the lever are two common simple machines people use to
do work everyday.
There are four more basic simple machines besides the wedge and the
lever.
D)

Answer 1

I believe the answer is C: The wedge and the lever are two common simple machines people use to do work everyday.

Step-by-step explanation:

This is the best concluding sentence, in my opinion, for the information that the paragraph contains.

Answer 2

Might be lever can be used to pry open doors in an emergency or to get nails out

of a board.

Step-by-step explanation: