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5th Grade Science > Simple Machines 5 > Flashcards

Simple Machines 5 Flashcards

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1
Q

What is the ability to do work called?

A

energy

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2
Q

What is being done when an object is moved?

A

work

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3
Q

What kind of energy does an object in motion have?

A

kinetic energy

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4
Q

When an object has stored energy, what kind of energy does it have?

A

potential energy

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5
Q

What type of energy does food have?

A

chemical energy

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6
Q

The type of energy that the moving parts of a bicycle has is __________.

A

mechanical energy

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7
Q

What type of energy does a computer have?

A

electrical energy

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8
Q

What is the resistance caused by two objects rubbing together called?

A

friction

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9
Q

What is a force?

A

a push or pull

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10
Q

What creates heat?

A

friction

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11
Q

What is inertia?

A

The tendency for an object to stay in motion and resting objects to stay at rest.

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12
Q

What is the relationship between the amount of energy used and the amount of work accomplished called?

A

efficiency

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13
Q

How can we change the direction of a force or increase the effect of a force?

A

use machines

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14
Q

Why do we use machines?

A

They help us work more efficiently

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15
Q

What is a bar that works of a fulcrum called?

A

lever

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16
Q

A flat surface that is raised so one end is higher than the other one is an __________.

A

inclined plane

17
Q

What simple machine is wide at one end and pointed at the other?

A

a wedge

18
Q

What simple machine holds things together?

A

a screw

19
Q

What simple machine is used to push, pull, or lift things?

A

a lever

20
Q

What simple machine is used to cut or split objects?

A

a wedge

21
Q

What simple machine is used to move objects up and down?

A

an inclined plane

22
Q

A simple machine that is used to move or turn things is __________.

A

a wheel and axle

23
Q

What simple machine is used to lift an object by changing the direction or amount of the force?

A

pulley

24
Q

What is an example of a screw?

A

a jar lid

25
Q

What simple machine is found on a flagpole?

A

a pulley

26
Q

What simple machine makes roller skates roll?

A

wheel and axle

27
Q

What are two examples of a lever?

A

a seesaw and lever

28
Q

An example of an inclined plane is a __________.

A

ramp

29
Q

What type of simple machine is a knife or axe?

A

wedge

30
Q

Two or more simple machines combined together make a __________.

A

compound machine

31
Q

A machine made from many compound machines is a __________.

A

complex machine

5th Grade Science (12 decks)

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