# TEMS - What Is A Machine? Chapter 4.2 And 4.3: Question Preview (ID: 18067)

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What is a simple machine that has a grooved wheel that holds a rope and provides a mechanical advantage of two?
a) Lever
b) Single-fixed pulley
c) single-movable pulley
d) block and tackle

What is an inclined plane wrapped around a post?
a) wedge
b) First-class lever
c) Second-class lever
d) screw

What is a simple machine that has a straight, slanted surface?
a) Block and Tackle
b) Screw
c) Lever
d) Inclined plane

What is a simple machine that has a grooved wheel that holds a rope and provides a mechanical advantage of one?
a) Single fixed pulley
b) Single Movable pulley
c) Wheel and Axle
d) Block and Tackle

What kind of machine has the input force in between the resistance and fulcrum?
a) first-class lever
b) second-class lever
c) third-class lever
d) wedge

What kind of machine has a fulcrum in between the input force and load (resistance)?
a) First-class lever
b) Second-class lever
c) Third-class lever
d) Fourth-class lever

What is the fixed point on a lever called?
a) inclined plane
b) axle
c) fulcrum
d) input

What is a simple machine made of two circular objects of different sizes? They turn together
a) Lever
b) Wedge
c) Inclined Plane
d) Wheel and Axle

When turning a screwdriver, it is used as a...
a) first-class lever
b) second-class lever
c) wheel and axle
d) inclined plane

What kind of machine is a see-saw?
a) inclined plane
b) first-class lever
c) second-class lever
d) third-class lever

What prevents a machine from being 100 % efficient?
a) input force
b) output force
c) friction
d) power

What is the formula for mechanical advantage?
a) W = F x d
b) MA = output force/input force or MA = Fr/Fe
c) MA = input force/ output force or MA = Fe/Fr
d) MA = input force/output force

What is the comparison of a machine's work output and work input
a) mechanical efficiency
c) force
d) power

What is the number of times the machine multiplies the effort force?
a) mechanical efficiency
b) power
c) force

Work done by you on the machine is called...
a) work output
b) force input
c) force output
d) work input

Work done by a machine on an object is called....
a) work input
b) work output
c) input force (effort force)
d) output force (resistance force)

What is a device that makes work easier by changing the size and direction of the force?
a) machine
b) work
c) force
d) power

What kind of machine has a movable pulley and fixed pulley?
a) wedge
b) block and tackle
c) lever
d) screw

Tweezers are a good example of....
a) Third-class lever
b) First-class lever
c) Second-class lever
d) pulley

A nutcracker/lobster shell cracker is a good example of ....
a) Wheel and axle
b) First-class lever
c) Second-class lever
d) Third-class lever

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