Free Printable Contraptions

1.

Match the following formulas

a)

Mechanical advantage of a Pulley

1.

$MA=\frac{Load}{Effort}$

b)

Mechanical advantage of an Incline Plane

2.

$MA=\frac{Slope}{Height}$

c)

Mechanical advantage of a Wheel and Axel

3.

$MA=\frac{Wheel\ radius}{Axel\ radius}$

d)

Mechanical advantage of a Screw

4.

$MA=\frac{2\pi\times Radius}{Pitch}$

e)

Mechanical advantage of a Wedge

5.

$MA=\frac{Slope}{Width}$

2.

Match the following formulas

a)

Work

1.

$W=F\times d$

b)

Pythagorean Theorem

2.

$a^2+b^2=c^2$

c)

Mechanical advantage of a Lever using Distance

3.

$MA=\frac{Effort\ dis\tan ce}{Resis\tan ce\ Dis\tan ce}$

d)

Mechanical advantage of a Lever using Force

4.

$MA=\frac{Resis\tan ce\ force}{Effort\ force\ }$

e)

Mechanical advantage of a Lever using Arm

5.

$MA=\frac{Effort\ arm}{Resis\tan ce\ arm}$

3.

Identify the simple machine in the picture.

a)

Lever

b)

Inclined plane

c)

Wheel and axle

d)

Screw

4.

Identify the simple machine in the picture.

a)

Wheel and axle

b)

Inclined plane

c)

Lever

d)

Wedge

5.

Identify the simple machine in the picture.

a)

Inclined plane

b)

Wedge

c)

Pulley

d)

Screw

6.

Identify the simple machine in the picture.

a)

Wheel and axle

b)

Inclined plane

c)

Screw

d)

Pulley

7.

Identify the simple machine in the picture.

a)

Screw

b)

Wheel and axle

c)

Wedge

d)

Pulley

8.

Identify the simple machine in the picture.

a)

Inclined plane

b)

Wedge

c)

Lever

d)

Screw

9.

A slide would be an example of which type of simple machine?

a)

Lever

b)

Inclined plane

c)

Wheel and axle

d)

Wedge

10.

A teeter-totter would be an example of which type of simple machine?

a)

Inclined plane

b)

Wedge

c)

Pulley

d)

Lever

11.

A door stop would be an example of which type of simple machine?

a)

Wedge

b)

Inclined plane

c)

Wheel and axle

d)

Lever

12.

A simple machine makes work easier by doing which of the following?

a)

Increasing the distance through which force is applied.

b)

Changing the direction of applied force.

c)

Multiplying the force of the energy applied.

d)

All of the above.

13.

An inclined plane wrapped around a rod forms this simple machine

a)

lever

b)

pulley

c)

screw

d)

wedge

14.

A flat sloping surface that connects lower and higher elevations. It makes raising objects easier.

a)

wedge

b)

screw

c)

lever

d)

inclined plane

15.

Which is not a type of simple machine?

a)

spring

b)

screw

c)

pulley

d)

wedge

16.

3. Which type of lever is this?

a)

First Class Lever

b)

Second Class Lever

c)

Third Class Lever

17.

What class lever does this picture show?

a)

1st

b)

2nd

c)

3rd

18.

The force applied to move a load using a simple machine.

a)

class 2 lever

b)

newton

c)

effort

d)

load

19.

The metric unit used to measure force.

a)

fulcrum

b)

newton

c)

inches

d)

spring scale

20.

A lever in which the load is between the fulcrum and the effort.

a)

class 1

b)

class 2

c)

class 3

21.

What is a lever?

a)

made of 2 inclined planes that are back to back

b)

means attracted to a magnet

c)

stiff bar that rests on a fulcrum

d)

made of 2 inclined planes that are back to back

22.

What is an inclined plane?

a)

wheels that turn on a post

b)

made from two or more simple machines

c)

flat surface that is higher at one end

d)

uses a wheel and a rope to lift a load

23.

What is the fixed point where a lever turns or pivots?

a)

load

b)

work

c)

fulcrum

d)

screw

24.

A machine with few or no moving parts is called a ______.

a)

machine

b)

compound machine

c)

simple machine

d)

work

25.

Which of these is not an example of an inclined plane?

a)

ladder

b)

stairs

c)

wall

d)

driveway

26.

Imagine you're a secret agent and you need to split or cut an object. Which triangular-shaped spy gadget would you use?

a)

A screwdriver

b)

A hammer

c)

A wedge

d)

Pliers

27.

Imagine you're at a playground, having fun on a seesaw. Can you guess which simple machine a seesaw is an example of?

a)

pulley

b)

wheel and axle

c)

lever

d)

screw

28.

Wheels, levers, pulleys, ramps, screws, and wedges are forms of _______________________.

a)

potential energy

b)

simple machines

c)

chemical changes

d)

dark matter

29.

A crane uses ___________ to lift heavy loads.

a)

ramps

b)

pulleys

c)

axles

d)

wedges

30.

What are the different parts of the screw?

a)Head

b)Pitch

c)Thread

d)Point

e)Fulcrum

f)Arm

1

2

3

4

1)

2)

3)

4)

31.

TRUE or FALSE : All simple machines have wheels.

a)

True

b)

False

32.

TRUE or FALSE : Friction is a force that makes it harder to move objects

a)

True

b)

False

33.

________ is a measure of the amount of matter in an object

a)

Mass

b)

Weight

c)

Grams

d)

Work

34.

WHAT ARE THE 3 MAIN PARTS OF A LEVER?

a)

FOOT, EFFORT, REPORT

b)

FULCRUM, STRUCTURE, EFFORT

c)

FULCRUM, EFFORT, LOAD

35.

6. What kind of lever is this?

a)

First Class Lever

b)

Second Class Lever

c)

Third Class Lever

36.

Simple machines make the work we have to do easier, but it is still the same amount of work.

a)

TRUE

b)

FALSE

37.

In second class lever, the load is between the fulcrum and _______.

a)

Load

b)

Effort

c)

Stone

38.

There are _____________ types of levers

a)

One

b)

Two

c)

Three

d)

Four

39.

What is the measure of energy used to move an object?

a)

werk

b)

work

c)

wheel and axle

d)

ramp

40.

Sue wants to split a piece of wood. Which simple machine should she use to make the job easier?

a)

pulley

b)

wheel and axle

c)

wedge

41.

What is a pulley?

a)

A type of lever

b)

A simple machine used to lift heavy objects

c)

A type of screw

d)

A tool for measuring weight

Contraptions - Simple Machines

Total questions: 41

Worksheet time: 22mins

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