# Motion, Simple Machines And Waves! Physics Quiz

40 Questions | Total Attempts: 251  Settings  Motion, simple machines and waves, physics quiz. One of the basic rules for physics is that for every action, there is a reaction. Simple machines have been in use for the longest time ever in the building of the pyramids. Power is the rate at which work is done, and machines increase this rate by a significant amount. Take up this quiz and get to see how much you know about power and motion.

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• 1.
How does a ramp make lifting a heavy object easier?
• A.

The ramp increases the amount of work you do.

• B.

The object is moved over a shorter distance.

• C.

Less force is needed to move the object over a longer distance.

• 2.
If a barbell weighs 160 N, what other info do you need to calculate how much WORK it takes to lift it?
• A.

How high the barbell is being lifted

• B.

The amount of output force

• C.

The strength of the person doing the lifting

• 3.
Greg applies a force of 100 N to move a box 5 meters. How much work did he do?
• A.

500 J

• B.

500 N

• C.

5 J

• 4.
_____________ is the lowest point between each crest of a wave.
• A.

Trough

• B.

Wavelength

• C.

Compression

• 5.
The distance traveled by an object per unit time is called __________________.
• A.

Speed

• B.

Acceleration

• C.

Force

• 6.
What is the unit for power?
• A.

Watt

• B.

Joule

• C.

Newton

• 7.
Referring to one of Newton’s Laws, for every action, the reaction is ______________________
• A.

Equal and opposite

• B.

Increased significantly

• C.

Equal and in the same direction

• 8.
What is power?
• A.

The rate at which work is done

• B.

The work that is done

• C.

The strength of someone or something

• 9.
A device that makes work easier by changing the size or direction of force is called what?
• A.

Machine

• B.

Watt

• C.

Force

• 10.
________________ is the tendency for all objects to resist any change in motion.
• A.

Inertia

• B.

Velocity

• C.

Mass

• 11.
As the wavelength increases, the frequency.
• A.

Decreases

• B.

Increases

• C.

Stays the same

• 12.
If two people lift identical stacks of books the same distance and one person does the job twice as fast, which of the following has doubled?
• A.

Power

• B.

Work output

• C.

Work input

• 13.
How is work calculated?
• A.

Force times distance

• B.

Power times force

• C.

Power divided by distance

• 14.
___________ is a unit that measures force.
• A.

Newton

• B.

Meters per second per second

• C.

Work

• 15.
Work is being done when
• A.

You exert a force that moves an object in the direction of the force

• B.

An object is moving after you applied a force to it

• C.

You apply a force to an object

• 16.
A ___________________ is a push or pull in any direction.
• A.

Newton

• B.

Force

• C.

Fluid

• 17.
Which of the following types of waves requires a medium?
• A.

Sound waves

• B.

X-rays

• C.

Visible light

• 18.
____________________ is the number of waves produced in a given amount of time
• A.

Frequency

• B.

Wavelength

• C.

Wave speed

• 19.
If you travel from the Earth to the moon (gravitational force changes), the _____________.
• A.

Mass remains constant

• B.

Weight remains constant

• C.

Mass changes

• 20.
Using the equation , solve for the following...  = 340 m/s  =   100 Hz  =  ?
• A.

3.4 m

• B.

240 m

• C.

34,000 m

• 21.
______________ is a force that opposes motion
• A.

Friction

• B.

Gravity

• C.

Joule

• 22.
The wave property that is related to the height of a wave is the
• A.

Amplitude

• B.

Frequency

• C.

Wavelength

• 23.
You apply 250 N of force to move an object 10 meters and it takes 10 seconds to complete this task.  How much power was used?
• A.

250 W

• B.

2,500 W

• C.

25 W

• 24.
A remote controlled airplane can fly from one edge of the parking lot to the shore of the lake, a distance of about 150 meters.  If it takes this plane 30 seconds to travel this distance what is this plane’s speed?
• A.

5 m/s

• B.

130 m/s

• C.

1,500 m/s

• 25.
The acceleration of gravity is 9.8 m/s/s
• A.

True

• B.

False