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Force Study Guide

Total questions: 30

Worksheet time: 52mins

Name
Class
Date
1.
The glow sticks produce light for a short amount of time. The light from the glow stick is a conversion from what to what?
a)
thermal to light
b)
gravitational to potential
c)
radiant to electrical
d)
chemical to light
2.

A measure of the average kinetic energy of the individual particles in matter is:

a)

mass

b)

temperature

c)

matter

d)

heat

3.
The amount of heat required to raise the temperature of one gram of a substance by one degree Celsius is ________
a)
Heat energy
b)
Specific heat
c)
convection
d)
thermal energy
4.

Which of the following best explains why the sand at the beach is hotter than the water?

a)

Sand has a higher specific heat than water.

b)

Sand has a lower specific heat than water.

c)

There is more water than sand at the beach.

d)

There is more sand than water at the beach.

5.

Which will heat up faster?

a)

copper

b)

granite

c)

iron

d)

basalt

6.

Which will heat up slower?

a)

water

b)

lead

c)

granite

d)

iron

7.
what kind of heat is happening when the sun heats your body
a)
conduction
b)
convection
c)
density
d)
radiation
8.
Warm air rises and the cool air sinks.
a)
conduction
b)
convection
c)
radiation
9.
Johnny accidentally grabbed the handle of the hot pot.
a)
conduction
b)
convection
c)
radiation
10.
A train that travels 100 kilometers in 4 hours is traveling at what average speed?
a)
50 km/h
b)
100 km/h
c)
2 km/h
d)
25 km/h
11.

If a crumpled piece of paper and a flat sheet of notebook paper are dropped at the same time from the same height, why does the crumpled piece of paper land first?

a)

The flat paper experiences more fluid friction (air resistance).

b)

The flat paper experiences more rolling friction.

c)

The flat paper experiences more static friction.

d)

The crumpled piece of paper experiences more gravitational force.

12.

The graph shows the velocity of 4 cyclists traveling north on a straight road. Which cyclist accelerated the most during seconds 15 and 20.

a)

W

b)

X

c)

Y

d)

Z

13.

When we are close to the Earth's surface, the acceleration due to gravity that we feel is

a)

9.8 m/s2 [up]

b)

9.8 m/s2 [right]

c)

9.8 N [down]

d)

9.8 m/s2 [down]

14.
Which law best explains why people remain in motion when a car crashes, if they are not wearing a seat belt?
a)
Newton's Law of Inertia
b)
Newton's Law of F=ma
c)
Newton's Law of Force Pairs
d)
Newton's Law of Biology
15.
Which law best explains why more force must be applied to the bowling ball to make it accelerate at the same rate as the tennis ball. 
a)
Newton's Law of Inertia
b)
Newton's Law of F=ma
c)
Newton's Law of Force Pairs
d)
Newton's Law of Biology
16.
What is the difference between mass and weight?
a)
mass is how much matter is in an object, and weight is the gravitational pull on that object
b)
mass and weight are the same
c)
weight affects how much mass is in an object
d)
weight is determined by how many atoms make up an object
17.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
18.
For every action, there is an equal and opposite reaction.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
19.
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
20.
What is the equation for mechanical advantage?
a)
MA=input force*output force
b)
MA=output force/input force
c)
MA=input force/output force
d)
MA= output force - input force
21.
if a load of a lever is 100 newtons and the force you apply is 20 newtons, what is your mechanical advantage?
a)
120 N
b)
5 N
c)
2000 N
d)
80 N
22.
What machine changes electrical energy into light and sound energy?
a)
battery
b)
lightbulb
c)
alarm clock
d)
apple
23.
The flow of energy that occurs when a warm liquid or gas rises ..
a)
Heat
b)
Conduction
c)
Convection
d)
Radiation
24.
In a lava lamp, the warm part rises and the cool part sinks.  This is an example of 
a)
heat computation
b)
convection
c)
conduction
d)
radiation
25.

What is the boiling point of this substance?

a)

0 oC

b)

87.8 oC

c)

100 oC

d)

-12.2 oC

26.

Where on the graph is the greatest increase of kinetic energy?

a)

A to B

b)

B to C

c)

C to D

d)

D to E

e)

E to F

27.
An inclined plane is 15 meters long and raises 3 meter high.  If you want to push a 20 N box up the inclined plane, how much effort force will you need? Remember, FeDe = FrDr
a)
 900 N
b)
4 N
c)
2.25 N
d)
  100 N
28.
A pulley brings a 100 kg piano up into a second story window.  What is the ideal mechanical advantage if the pulley has 5 strands?
a)
20
b)
500
c)
5
d)
0.05
29.

A force of 50 N is applied to the end of a lever to lift a rock that is 350 N.  What is the MA of the lever?

a)

70

b)

0.14

c)

7

d)

17,500

30.

What is the formula to calculate the MA (mechanical advantage) ?

a)

MA= height/width

b)

MA= Resistance/effort

c)

MA= R/R

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