WorksheetsMachines
Total questions: 15
Worksheet time: 17mins
Name
Class
Date
1.
What is a simple machine?
a)
a device that has only one working motor
b)
a device that makes work easier
c)
a device that makes more work for a job
d)
device that is made up of two or more machines
2.
What is the equation for calculating work?
a)
force times distance
b)
force divided by distance
c)
force plus distance
d)
mass times acceleration
3.
What are the units for work?
a)
newtons
b)
meters
c)
force
d)
joules
4.
A flat sloping surface that connects lower and higher elevations. It makes raising objects easier.
a)
wedge
b)
screw
c)
lever
d)
inclined plane
5.
An inclined plane wrapped around a rod forms this simple machine
a)
lever
b)
pulley
c)
screw
d)
wedge
6.
A simple machine that consists a rigid bar that pivot about a fixed point
a)
lever
b)
pulley
c)
wheel and axle
d)
fulcrum
7.
The "fixed point" on which a lever rests and, or pivots is known as which of the following?
a)
screw
b)
wheel and axle
c)
see saw
d)
fulcrum
8.
A seesaw is an example of which machine?
a)
wedge
b)
lever
c)
inclined plane
d)
pulley
9.
A door knob is an example of which machine?
a)
wheel and axle
b)
swrew
c)
pulley
d)
inclined plane
10.
Stairs are a
a)
wedge
b)
pulley
c)
inclined plane
d)
wheel and axle
11.
This device
a)
wedge
b)
lever
c)
incline plane
d)
wheel and axle
12.
A _______ is a rope or chain wrapped around a wheel.
a)
wedge
b)
lever
c)
pulley
d)
screw
13.
A 50 N block is lifted 10 m. How much work was done?
a)
50000 J
b)
5000 J
c)
500 J
d)
50 J
14.
Is work being done if I am trying to pick up a box but can not lift it?
a)
yes
b)
no
15.
A girl pushes a box across the floor. Did she do work?
a)
no
b)
yes
100 %
