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Work & Simple Machines II
Test Description: Work and Simple Machines
Instructions: Answer all questions to get your test result.
1) Which is NOT an example of a complex machine?
A
a hand drill
B
a bicycle
C
a pencil sharpener
D
a broom
2) To puncture a can, a can-opener relies on a sharp wedge. The wedge is a variation of which simple machine?
A
lever
B
wheel and axle
C
pulley
D
inclined plane
3) Which of the following simple machines is used to help the can-opener revolve around the top of the can while opening it?
A
wheel and axle
B
pulley
C
lever
D
lever
4) Because it uses several simple machines to complete its task, the can opener can be referred to as what?
A
a complex or compound machine
B
an advanced or super machine
C
a combination machine
D
a utility machine
5) Which type of simple machine is a hammer?
A
pulley
B
screw
C
wheel
D
lever
6) The fixed point that a lever pivots around is called the
A
fulcrum.
B
axle.
C
gear.
D
pulley.
7) If a load is too heavy to push up an inclined plane, which of the following reccommendations could you make to help?
A
Use a shorter, steeper ramp.
B
Use a single, fixed pulley to lift the load.
C
Drag the load up the ramp in a box without wheels.
D
Use a longer, gradual ramp.
8) Which of the following tools can be used to measure the force used to lift an object?
A
gravitron
B
springometer
C
triple-beam balance
D
spring scale
9) Which simple machines are parts of a wheel barrow?
A
lever and pulley
B
wedge and wheel & axle
C
lever and wedge
D
wheel & axle and lever
10) Which of the following is NOT a simple machine that uses a pulley or pulley system?
A
slide
B
sail on a sailboat
C
flag pole
D
crane
*select an answer for all questions
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