Font size
WorksheetsScience Chapter 16: Machines
Total questions: 20
Worksheet time: 40mins
What is the formula for work?
Force x Acceleration
Force x Distance
Force x Mass
Force x Gravity
What is work measured in?
Joules
Newtons
Grams
Liters
How many parts does a compound machine have?
Only 1
Only 2
More than 2
None at all
What is a Rube Goldberg machine?
A machine that only Rube Goldberg is allowed to use.
A compound machine where all the parts affect how the next one will work.
A simple machine that does the work of a compound machine.
The machines that are used to make Rubik's Cubes
Which of these is a simple machine?
A car
A robotic arm
An escalator
A pulley
Crab's claws are which type of lever?
First-class
Second-class
Third-class
None of these
What is a grooved wheel with a rope and a chain around it?
A pulley
A lever
A screw
A wedge
Select all the simple machines
Levers
Inclined Planes
Screws
Wedges
Wheel and axles
What is a fulcrum?
The point on lever or bar where it rests and moves freely around a pivot point
The amount of force it takes to move a lever
A grooved wheel with a rope
A weight that pushes on a machine with force
What is a device that helps people do work called?
A fulcrum
A joule
A screw
A machine
I pushed a box 50 feet across the floor with 10 Newtons of force. How much work did I do?
5 Joules
50 Joules
500 Joules
5000 Joules
Which of these are examples of work
Sitting at a desk
Pushing a box across the floor
Lifting your backpack
Swinging a baseball bat
Where is the load located in a second-class lever?
The left side
The right side
The middle
It has no load
What causes machines to give off heat while they work?
Gravity
Friction
Joules
Fulcrum
Which of the following machines all contain a wedge?
A knife
A ship
A lightbulb
A needle
An axe
Select all the machines that have wheels and axles
A car
An airplane
A printer
What type of machine is this?
Lever
Pulley
Wedge
None of these
Can chopsticks be considered a machine?
No, they are just sticks
No, there is only one part
Yes, they help us do work
Yes, because they were made in a factory
What is effort force?
The force that is applied to a machine
The force that a machine creates
The force needed to lift a load completely off the ground
The force of gravity on a machine
Why do we use machines?
We are lazy
Machines can do more work than humans can do alone
Machines make work easier
We do not know how to work
