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Javi Dec 2020 PRE-TEST

Total questions: 60

Worksheet time: 1hrs 12mins

Name
Class
Date
1.
All forces have______
a)
joules
b)
size and direction
c)
height
d)
weight
2.
According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will
a)
remain in motion.
b)
eventually come to a stop.
c)
change its momentum.
d)
accelerate.
3.
When the net force is zero, the forces on an object are balanced. True or false.
a)
true
b)
false
4.
A rocket is sent into space.  When the power dies out, the rocket will just keep floating and moving in space forever (unless an unbalanced force, such as a meteor, runs into it).
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
5.
How much work is done by a motor that lifts a train car on El Toro to the top of a 70-meter hill using a force of 15,000 N?
a)
1,000,000 J
b)
214.29 J
c)
1,050,000 J
d)
105,000 J
6.

Ability to do work is known as?

a)

Energy

b)

Work

c)

Force

d)

Machine

7.

The energy obtained from the Sun is known as?

a)

water energy

b)

wind energy

c)

electrical energy

d)

solar energy

8.

Force can move a stationary object or stop a moving object.

a)

True

b)

False

9.
The amount of energy used when a force moves an object a certain distance
a)
Work
b)
Force
c)
Newtons 
d)
Joules
10.

Energy in the form of motion.

a)

mechanical energy

b)

potential energy

c)

kinetic energy

d)

momentum

11.
1 meter = _______ cm
a)
1
b)
1,000
c)
100
d)
400
12.
An object with which of the following densities will float on water?
a)
0.7 g/cm3
b)
1.2 g/cm3
c)
3.5 g/cm3
d)
11.4 g/cm3
13.
What is the measuring unit for mass?
a)
centimeter 
b)
millimeter 
c)
grams 
d)
pounds
14.
28 °C = __?__ K
a)
301
b)
245
c)
401
d)
345
15.

What SI unit is used to measure length?

a)

meters

b)

liters

c)

centimeters

d)

kilograms

16.

What is the symbol for the prefix kilo-?

a)

L

b)

m

c)

k

d)

kg

17.

The equation for solving Density is (a)  

18.

The SI units of science are based on the __________ system

a)

Emperical

b)

Standard

c)

Metric

d)

Science

19.

The mass of an elephant is best shown using which unit?

a)

g

b)

mg

c)

hg

d)

kg

20.

Which options shows the correct conversion between grams and milligrams?

a)

85g = 8500mg

b)

85g = 8.5mg

c)

85g = .85mg

d)

85g = 85000mg

21.
Bill jogs 400 meters to Andy's house, turns around, and runs 400 meters back home.  He does so in 267 seconds.  What is Bill's average speed?
a)
about 3 m/s
b)
about 1.5 m/s
c)
0
d)
about 4 m/s
22.

A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?

a)

10 m/s

b)

1000 m/s

c)

100 seconds

d)

10 seconds

23.
Which of the following is a unit of time?
a)
sec
b)
mi
c)
m/s
d)
km
24.
Which of the following is a unit of distance ?
a)
miles/hr
b)
mi
c)
s
d)
min
25.
Which of the following is a unit of time?
a)
km/hr
b)
hr
c)
km
d)
mi
26.

Speed -

a)

A measure that gives rate of change and position

b)

A measure that dissolves to one unit

c)

A measure of distance an object travels per unit of time.

d)

A measure of distance an object travels per unit of measurement.

27.
Distance over time.
a)
Travel
b)
Motion
c)
Velocity
d)
Speed
28.
Speed plus direction.
a)
Velocity
b)
Motion
c)
Position
d)
Acceleration
29.
What does this graph represent?
a)
Constant Speed
b)
Acceleration
c)
Deacceleration
d)
Not moving
30.
According to the graph how far does the person travel in the first 5 seconds?
a)
2 m
b)
10 m
c)
0 m
d)
5 m
31.
___________________ is the measure of kinetic energy of particles. 
a)
A thermometer
b)
Expansion
c)
Farenheit
d)
Temperature
32.
How is heat transferred?
a)
From a cooler object to a warmer object.
b)
From a warmer object to a cooler object
33.
Which tool is used to measure thermal energy?
a)
oven 
b)
scale
c)
thermometer
34.
Heat energy from the sun is transferred to Earth by:
a)
conduction.
b)
radiation.
c)
convection.
d)
insulation.
35.
Heat is the movement of ______.
a)
radiation
b)
thermal energy
c)
cold
d)
fire
36.
Heat moves by ______ when it travels from one solid to another solid.
a)
radiation
b)
convection
c)
thermal energy
d)
conduction
37.
The measure of average kinetic energy of all the particles within an object is called ____________. 
a)
temperature
b)
conduction
c)
radiation
d)
heat 
38.
Chlorine boils at 239 K. What is the boiling point of chlorine expressed in degrees Celsius?
a)
93 degrees Celsius
b)
34 degrees Celsius
c)
-61 degrees Celsius 
d)
-34 degrees Celsius 
39.
Convert: 186.5 K to C
a)
-86.4 C
b)
-50 C
c)
-68.4 C
d)
180 K
40.
Convert 5900 K to oC
a)
6173 oC
b)
5627 oC
41.
What is the correct SI unit for mass?
a)
Kilograms
b)
newtons
c)
pounds
d)
grams
42.
The SI unit for temperature is __?__.
a)
degree fahrenheit  (° F)
b)
degree celsius  (° C)
c)
kelvin  (K)
d)
degree centigrade  (°C)
43.

SI stands for ___.

a)

Sports Illustrated

b)

Scientific Notation

c)

International System (of measurements)

d)

Instructional System (of measurements)

44.

The SI unit for mass is.....

a)

grams

b)

meters

c)

pounds

d)

liters

e)

ounces

45.
There are _______ grams in 1 kilogram
a)
1
b)
10
c)
100
d)
1000
46.

Convert 25 degree Celsius into degree Fahrenheit

a)

67

b)

76

c)

78

d)

77

47.

Convert

 450 K450\ K  to Celsius

a)

 723oC723^oC  

b)

 277oC277^oC  

c)

 177 oC177\ ^oC  

d)

 623oC623^oC  

48.

How many feet are in 36 inches?

a)

6

b)

5

c)

4

d)

3

49.

How many feet are in 30 inches?

a)

2

b)

2 1/2

c)

3

d)

3 1/2

50.

3 inches = ________ cm

a)

2.54

b)

6.54

c)

7.62

d)

5.08

51.
What is the equation used to calculate pressure?
a)
pressure= force/mass
b)
pressure =mass/volume
c)
pressure=area/force
d)
pressure=force/area
52.
What is the unit of measurement for pressure?
a)
pascal
b)
grams
c)
milliters
d)
meters
53.
Look at the pressure triangle. How do we calculate the area?
a)
f ÷ a
b)
f x p
c)
p x f
d)
f ÷ p
54.

When you increase your depth under water, the water pressure on your body

a)

increases

b)

decreases

c)

stays the same

55.

What is pressure?

a)

The amount of force exerted on a surface

b)

The surface area of an object

c)

The weight of an object

56.
Look at the pressure triangle. How do we calculate the force?
a)
f ÷ a
b)
f x p
c)
p x a
d)
f ÷ p
57.
True or false:
Pressure depends on depth
a)
true
b)
false
58.
In what direction(s) does air exert pressure?
a)
everywhere
b)
no where
c)
there is no pressure
d)
downward
59.
The force that pulls things toward earth.
a)
Speed
b)
Gravity
60.

This is an example of the everyday application of pressure in:

a)

Solids

b)

Liquids

c)

Gases

d)

Plasma

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