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Simple Machines
Test Description: Simple Machine Review
Instructions: Answer all questions to get your test result.
1) Two or more simple machines make up a ______________ machine.
A
simple
B
compound
C
complex
2) Wheels with teeth are called ____________________.
A
gears
B
wedge
C
wheel and axle
3) A flat, slanted surface can be used as an _________________
A
wedge
B
inclined plane
C
lever
4) An inclined plane twisted into a spiral is called a _____________.
A
pulley
B
screw
C
lever
5) A wheel and bar that passes through the center of the wheel are the two parts of a ________.
A
gear
B
pulley
C
wheel and axle
6) Anything that helps you do work or make work easier is called a ________.
A
machine
B
effort force
C
fulcrum
7) When the pulley wheel is not attached to some fixed objects so that it moves with the force your apply, it is a ______
A
movable
B
fixed pulley
C
movable and fixed pulley
8) Levers are classified into three groups depending on where the _______ is located.
A
fulcrum
B
load
C
effort force
9) Many simple machines, such as a sharp-edged pieces of stone, are often called _______.
A
compound
B
tools
C
levers
10) A bar or plank and a fixed point, called a fulcrum are the two parts of a _________.
A
lever
B
wedge
C
screw
11) Two inclined planes put back to back form a _________________.
A
screw
B
wedge
C
inclined plane
12) When the pulley wheel is attached to something so that it cannot change position it is called a _____________________,
A
fixed pulley
B
movable pulley
C
inclined plane
13) The object being moved by the lever is called the _________________.
A
load
B
fulcrum
C
effort force
14) The measure of how much useful work a machine puts out compared to the work put into it is called its ________.
A
force
B
load
C
efficiency
15) Machines that have few parts are called _______________.
A
complex
B
simple
C
compound
16) The force you used to move something is called the __________.
A
fulcrum
B
load
C
effort force
17) The more gears and moving parts a machine has, the _______ energy is lost to friction.
A
less
B
no
C
more
18) Scissors are made up of two wedges that are arranged as two _______ class levers.
A
2nd
B
3rd
C
1st
19) The point where the blades are connected on scissors is the __________.
A
blades
B
handles
C
fulcrum
20) Blinds have a _____________ that helps to raise and lower the blinds.
A
pulley
B
lever
C
screw
*select an answer for all questions
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