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Worksheets

Simple Machines, Physics, & Engineering

Total questions: 70

Worksheet time: 2hrs 32mins

Name
Class
Date
1.

Reorder the following steps to the Engineering process

a)

Define the problem

b)

Brainstorm & Plan

c)

Create prototype

d)

Test & Modify

e)

Display & Communicate

1)
2)
3)
4)
5)
2.

In what units is force measured in?

a)

kilograms

b)

watts

c)

newtons

d)

kilometres per second

3.

Friction is...

a)

a force that acts to slow down movement

b)

a force that acts to speed up movement

c)

increased by lubrication

d)

always a problem in our lives

4.

Match the following

a)

Constraint

1.

Challenges that may get in the way of the solution.

b)

Criteria

2.

What is needed to solve the problem.

c)

Scenario

3.

The description of the Problem

5.

Match the following

a)

Problem

1.

The question that needs to be considered, answered, or solved.

b)

Research

2.

To gather information about your problem.

c)

Brainstorm

3.

To develop multiple solutions.

d)

Solution

4.

The answer to a problem of the explanation for something.

6.
Question Image

Match the following

a)

Prototype

1.

Making a test model that contains only the important design features.

b)

Test

2.

Seeing if the solution works.

c)

Communicate

3.

To share information with others, discuss.

d)

Redesign/Modifications

4.

To make a revision or change to your original design.

7.
Would an engineer help develop better bubble gum?
a)
Yes
b)
No
8.
This is an interdisciplinary field combining mechanical, electrical, and chemical engineering to study the human body.
a)
Manufacturing
b)
Chemical
c)
Bio medical
d)
Civil
9.
The design and construction of buildings, dams, water treatment and carrying systems, air pollution controls, and transportation systems are the responsibilities of __________ engineers.
a)
Aerospace
b)
Manufacturing
c)
Mechanical
d)
Civil
10.
Keeping the water, air and soil healthy are the responsibilities of ________ engineers.
a)
Bio-related
b)
Chemical
c)
Civil
d)
Environmental
11.
This type of engineer works on machines with moving parts.
a)
Electrical Engineer
b)
Software Engineer
c)
Civil Engineer
d)
Mechanical Engineer
12.
This type of engineer designs airplanes, helicopters, and rockets. 
a)
Electrical Engineer
b)
Aerospace Engineer
c)
Mechanical Engineer
d)
Physics Engineer
13.

__________ are people that design and make the products we use everyday.

a)

people

b)

manufacturers

c)

engineers

d)

scientists

14.

In STEM, the “E” stands for:

a)

energy

b)

electrician

c)

efficient

d)

engineering

15.

Tying your shoe is technology because:

a)

it was designed by humans.

b)

it meets a need.

c)

it was designed by humans AND meets a need.

d)

it isn't technology.

16.

Anyone can have a STEM career.

a)

Yes

b)

No

17.

The following are STEM careers.

(check all that apply)

a)

Restaurant Chef

b)

Chemical Engineer

c)

Air Force Mechanic

d)

Nuclear Power Station Operator

e)

Computer Programmer

18.

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.

19.

Compound machines consist of two or more simple machines combined together to make work easier and increase the mechanical advantage. What two simple machines are used in a pair of scissors?

a)

Lever and a wheel/ axle

b)

Screw and a wedge

c)

Wedge and a lever

d)

Pulley and a lever

20.

Which of the following is NOT one of the things a machine can do?

a)

Changes the amount of force required.

b)

Changes the distance over which the force is exerted.

c)

Changes the direction of the force.

d)

Changes the amount of work done.

21.

How can simple machines make work easier?

a)

by decreasing the force needed to complete the task

b)

by increasing the friction between the machine and the object

c)

by adding more work on the object than originally applied

d)

by removing the force of gravity on the object

22.

Which simple machine would be the MOST efficient for lifting an object 30 meters off the ground?

a)

pulley

b)

screw

c)

wedge

d)

lever

23.

Workers push a heavy box up an inclined plane and onto a moving truck. Which best explains why these workers use an inclined plane?

a)

It makes their work easier because it requires less effort.

b)

It decreases the amount of work they have to do.

c)

It increases the amount of friction necessary to do the task.

d)

It makes the box weigh less.

24.

Simple machines can make work easier by reducing the input force needed to move an object. However, there is a trade off for decreased input. What is the trade off?

a)

The distance the object is moved is increased.

b)

The distance the object is moved is decreased.

c)

The amount of work is increased.

d)

The amount of work is decreased.

25.

There are ____ types of simple machines.

a)

I don't remember.

b)

5

c)

6

d)

4

26.
A ______ is a grooved wheel with a rope running along the groove.
a)
lever
b)
pulley
c)
screw
27.

Which simple machine is this?

a)

wheel and axle

b)

lever

c)

wedge

d)

pulley

28.
How much work is produced when 350 N is used to move a car 5 m (W=Fd)?
a)
70 J
b)
1750 J
c)
355 J
d)
175 J
29.
The amount by which a machine multiplies input force is known as the 
a)
work.
b)
power.
c)
output force.
d)
mechanical advantage.
30.
Mechanical advantage is a measure of how much a machine multiplies the input
a)
efficiency.
b)
force.
c)
power.
d)
work.
31.
1. A _________is a simple machine with a fulcrum and a rigid bar.
a)
Pivot
b)
Lever
c)
Wedge
32.
Question Image

Match the following machine

a)
1.

1st class lever

b)
2.

3rd class lever

c)
3.

2nd class lever

33.

1st class lever has the ​ (a)   in between; 2nd class lever has the ​ (b)   in the middle ; 3rd class lever has the ​ (c)   in the middle.

Choose from the below words
fulcrum
effort force
resistant force
mechanical advantage
great forc
great force
34.

exerting a force on an object that causes the object to move some distance

a)

work

b)

power

c)

mechanical advantage

d)

efficiency

35.

a device that allows you to do work in a way that is more efficient

a)

machine

b)

compound machine

c)

work

d)

power

36.

the force you exert on the machine

a)

input force

b)

output force

c)

efficiency

d)

mechanical advantage

37.

the force the machine exerts on an object

a)

input force

b)

output force

c)

efficiency

d)

mechanical advantage

38.

the ratio of output force to input force

a)

work

b)

mechanical advantage

c)

efficiency

d)

power

39.

the percentage of the input work that is converted to output work

a)

mechanical advantage

b)

efficiency

c)

joule

d)

machine

40.

the fixed point that a lever pivots around

a)

wedge

b)

inclined plane

c)

lever

d)

fulcrum

41.

a machine that utilizes two or more simple machines

a)

compound machine

b)

machine

c)

wedge

d)

screw

42.

can be fixed or movable, can change the direction of force or decrease the effort force, the more you use the less force you need.

a)

Wedge

b)

Inclined Plane

c)

Lever

d)

pulley

e)

Wheel and Axle

43.

push or pull

a)

Mechanical Advantage

b)

force

c)

energy

d)

work

e)

load

44.
A knife is an example of a (an)
a)
inclined plane
b)
wedge
c)
ramp
d)
pulley
45.
In this illustration,
a)
the machine is decreasing mechanical advantage
b)
the machine is increasing mechanical advantage
c)
mechanical advantage is not changed
46.
To increase the mechanical advantage of a lever
a)
make sure the fulcrum is in the middle of the lever
b)
move the fulcrum closer to the load
c)
move the fulcrum closer to the effort
d)
use a bigger fulcrum
47.
A ramp is an example of a(n)
a)
inclined plane
b)
fulcrum
c)
force
d)
lever
48.

What are two types of pulleys?

a)

wings, fries

b)

load. weight

c)

fixed, movable

d)

effort, force

49.

How do fixed pulleys make work easier?

a)

they change the direction of a force

b)

they change the amount of force required

c)

the distance over which the force is applied

d)

the measurement of an object

50.

What is the formula to calculate the AMA (actual mechanical advantage) of a pulley?

a)

AMA= height/width

b)

AMA= output force/input force

c)

AMA= R/R

d)

AMA= the number of supporting strings

51.

Identify the type of pulley

a)

fixed

b)

moveable

c)

block and tackle or pulley system

52.

What is the ideal mechanical advantage (IMA) of this pulley?

a)

.5

b)

1

c)

1.5

d)

2

53.

A load of 650 newtons is lifted with this pulley. What is the input force required to do this work?

a)

300

b)

325

c)

600

d)

650

54.

What is the ideal mechanical advantage of this pulley?

a)

1

b)

2

c)

3

d)

4

55.

What is the ideal mechanical advantage of this pulley system?

a)

4

b)

5

c)

6

d)

7

56.

What is the input force required to lift an output force of 600 newtons?

a)

100 newtons

b)

150 newtons

c)

300 newtons

d)

600 newtons

57.

Pulleys are never 100% efficient because of _________.

a)

friction

b)

force

c)

gravity

d)

speed

58.
Students pulled the same mass up an inclined plane that was 20 cm, 30 cm, and 40 cm long. Each time, they used a spring scale to measure the force needed to pull the mass up the inclined plane. What did they conclude?
a)
Less force was needed on the 20 cm plane
b)
More force was needed on the 40 cm inclined plane.
c)
The least amount of force was needed on the 40 cm inclined plane.
d)
The least amount of force was needed on the 30 cm inclined plane.
59.
An inclined plane reduces the amount of force needed to move an object by - 
a)
increasing the distance the object moves.
b)
transferring more of the force to the object
c)
reversing the direction the object is moved.
60.

You pull down on a rope attached to a fixed pulley.

What direction will the weight at the end move?

a)

Up

b)

Down

61.

What class lever is pictured below?

a)

Class-1 &3

b)

Class-3

c)

Class-2

d)

Class-1

62.

A travois, a Native American tool used to transport goods and people is picture here. What type of simple machine is a travois?

a)

screw

b)

wheel and axle

c)

inclined plane

d)

pulley

63.
When you carry a heavy box up a ramp, instead of lifting it directly onto a platform: 
a)
The amount of work you have to do increases slightly
b)
The amount of work you have to do decreases slightly 
c)
The amount of work you have to do decreases significantly
d)
The amount of work you have to do stays the same 
64.

Identify the simple machine in the picture.

a)

Lever

b)

Inclined plane

c)

Wheel and axle

d)

Screw

65.

Identify the simple machine in the picture.

a)

Inclined plane

b)

Wedge

c)

Pulley

d)

Screw

66.

Identify the simple machine in the picture.

a)

Wheel and axle

b)

Inclined plane

c)

Screw

d)

Pulley

67.

Identify the simple machine in the picture.

a)

Inclined plane

b)

Wedge

c)

Lever

d)

Screw

68.

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

a)

Inclined plane

b)

Pulley

c)

Wheel and axle

d)

Lever

69.

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

a)

Lever

b)

Inclined plane

c)

Wheel and axle

d)

Wedge

70.

All simple machine makes work (a)  

Choose from the below words
more efficient
Increasing the distance through which force is applied.
Changing the direction of applied force.
Multiplying the force of the energy applied.

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