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WorksheetsSemester Test
Total questions: 80
Worksheet time: 2hrs 12mins
Name
Class
Date
1.
Why do we need evidence?
a)
To answer a question
b)
To show how and why
c)
To prove our claim is true
2.
What is reasoning?
a)
Answers a question
b)
Explaining how evidence supports a claim
c)
Used to prove something true or false
3.
Which of the following is true?
a)
1.72 rounded to the nearest tenth is 1.7
b)
2.62 rounded to the nearest tenth is 2.7
c)
3.41 rounded to the nearest whole number is 4
d)
10.231 rounded to the nearest hundredth is 10.22
4.
Which of the following is 4.52 when rounded to the nearest hundredth?
a)
4.453
b)
4.449
c)
4.512
d)
4.523
5.
Round 43.827 to the nearest hundredth.
a)
43.82
b)
43.83
c)
43.87
d)
44
6.
How many sig; 302
a)
2 sig
b)
3 sig
c)
1 sig
d)
4 sig
7.
How many sig; 3.000
a)
1 sig
b)
2 sig
c)
3 sig
d)
4 sig
8.
How many sig; 29,100
a)
1 sig
b)
2 sig
c)
3 sig
d)
4 sig
9.
1 meter = _______ cm
a)
1
b)
1,000
c)
100
d)
400
10.
Convert 8 kilometers to meters
a)
800 m
b)
80,000 m
c)
8,000 m
d)
.008 m
11.
Flammable materials, like alcohol, should never be dispensed near
a)
an open door
b)
an open flame
c)
another student
d)
a sink
12.
If you do not understand a direction or part of a lab procedure, you should
a)
figure it out as you do the lab
b)
try several methods until something works
c)
ask the instructor before proceeding
d)
skip it and go on to the next part
13.
What two measurements are necessary for calculating speed?
a)
Mass and time
b)
Temperature and mass
c)
Mass and distance
d)
Distance and time
14.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
15.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
16.
What is the formula to calculate speed?
a)
S = t/d
b)
S = d/t
c)
S = d x t
d)
S = t x d
17.
What is the speed of an object that travels 60 meters in 4 seconds?
a)
240 m/s
b)
15 m/s
c)
0.067 m/s
d)
15 mph
18.
A hot air balloon traveled 2.5 hours at a speed of 450 km/hr. What distance did it travel?
a)
87 m/s
b)
1300 m/s
c)
180 km
d)
1,125 km
19.
What is the speed of a helicopter that traveled 1200 miles in 7 hours?
a)
70,000 seconds
b)
171 hours
c)
8,400 mi/hr
d)
171 mi/hr
20.
Dave runs a 400 m race with a speed of 4 m/s. What time will it take him to finish the race?
a)
400 minutes
b)
100 minutes
c)
100 seconds
d)
.25 seconds
21.
What are the appropriate units to describe acceleration?
a)
m/s
b)
m/s2
c)
cm
d)
there are no units associated with acceleration
22.
How can Newton's second law be represented mathematically?
a)
F=MA
b)
M= F/A
c)
A= F/M
d)
All are correct
23.
Why would one ball accelerate more than the other when pushed with the same amount of force?
a)
Different weights
b)
Different forces
c)
Different masses
d)
Different sizes
24.
Why is the net force 0 in the image?
a)
Because the elephants are the same size
b)
Because they are both pulling the same amount of force in opposite directions
c)
Because they are elephants
d)
Because they are pulling away from each other.
25.
One kg multiplied by m/s2 can also be expressed as 1 __________.
a)
direction
b)
mass
c)
kilogram2
d)
newton
26.
Acceleration: is the rate of change in ___________.
a)
speed
b)
distance
c)
velocity
d)
displacement
27.
What is the net force?
a)
20 N
b)
0 N
c)
400 N
d)
40 N
28.
If an object is not moving the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
29.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
30.
If the net force is equal to zero, the forces acting on the object are
a)
balanced
b)
unbalanced
31.
The law of conservation of momentum states that the total momentum of all objects interacting with each other will ________________________ no matter of the nature of the forces between the object.
a)
increase
b)
decrease
c)
remain constant
d)
fluctuate
32.
What are the units for momentum
a)
kg*m/s
b)
kg
c)
m/s
d)
none of these
33.
Momentum is a ____________________ quantity
a)
science
b)
scalar
c)
vector
d)
energy
34.
An object with a mass of 2000 kg at rest has what momentum?
a)
2000 kg m/sec
b)
0 kg m/sec
c)
2000 kg
d)
2000 m/sec
35.
A 0.250 kg cart moving at 0.500 m/s has how much momentum?
a)
0.5 kg*m/s
b)
.125 kg*m/s
c)
12.5 kg*m/s
d)
10 kg*m/s
36.
A runner has a momentum of 720 kg m/s and is traveling at a velocity of 5 m/s. What is his mass?
a)
14.4 kg
b)
1400 kg
c)
144 kg
d)
360 kg
37.
Calculate the momentum of a 55-kg running back moving westward at 10 m/s.
a)
550 kg·m/s, west
b)
550 kg·m/s
c)
550 m/s, west
d)
550 kg, west
38.
true or false
Two objects with the same mass will always have the same momentum.
a)
True
b)
False
39.
Which of the following has the MOST momentum?
a)
rolling ping-pong ball
b)
rolling bowling ball
c)
rolling soccer ball
d)
rolling basketball
40.
If an object has a momentum of 40 kgm/s and a mass of 60 kg, what is it's velocity?
a)
2400 m/s
b)
1.5 m/s
c)
240 m/s
d)
.67 m/s
41.
Which has more momentum, a 1000 kg car moving 1 m/s or a 70 kg person sprinting at 8 m/s?
a)
car
b)
person
c)
they have the same momentum
d)
sitting elephant
42.
this is the symbol for a _____?
a)
switch
b)
light
c)
battery
d)
wires
43.
what is this symbol for?
a)
light bulb
b)
cell
c)
battery
d)
resistor
44.
Pick the correct sentence.
a)
This circuit will work because it is a closed circuit.
b)
Energy will freely flow in this circuit.
c)
This circuit will not work because there is no energy source.
d)
This circuit will not work because there is no switch.
45.
What will happen if one light bulb is removed from this circuit?
a)
The other bulbs will go out.
b)
The other bulbs will stay on
c)
The other bulbs will get dimmer.
d)
The battery will become stronger.
46.
wood is a _____?
a)
conductor
b)
insulator
47.
water is a______?
a)
conductor
b)
insulator
48.
What is a Parallel circuit?
a)
Has only one path
b)
Has more than one path
c)
Allows energy to travel through easily
d)
Has only one light bulb
49.
What is kinetic energy?
a)
moving energy
b)
potential energy
c)
stored energy
d)
renewable energy
50.
You serve a volleyball with a mass of 2 kg. The ball leaves your hand with a speed of 30 m/s. What is the KE of the ball?
a)
900 J
b)
1800 J
c)
60 J
d)
30 J
51.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
52.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
53.
Conduction can only occur between two objects when –
a)
one object is less dense than the other.
b)
both objects are in physical contact with each other.
c)
one of the objects is made of a metal.
d)
both objects are exactly the same temperature.
54.
Which container allowed the most transfer of thermal energy from the water to the environment?
a)
Glass
b)
Wood
c)
Paper
d)
Plastic
55.
Which of following is a conductor?
a)
Wooden Stick
b)
Styrofoam Cooler
c)
Metal Pot
d)
Plastic Container
56.
what is radiation?
a)
direct touch
b)
air or liquids
c)
heat waves/ light waves
d)
touching the cookies out of the oven
57.
How does air travel?
a)
they don't travel
b)
hot to cold
c)
cold to hot
d)
All of the above
58.
When the frequency of a wave increases, what happens to the wavelength?
a)
The wavelength is not directly affected by the frequency of a wave.
b)
The wavelength increases.
c)
The wavelength decreases.
d)
More specific information is needed to form a conclusion about the wavelength.
59.
A mechanical wave cannot travel through...
a)
a vacuum(empty space).
b)
water.
c)
air.
d)
glass.
60.
Which wave in the diagram has the greatest frequency?
a)
1
b)
2
c)
3
d)
4
61.
The number of wavelengths that pass a point each per second is:
a)
frequency
b)
period
c)
longitudinal
d)
transverse wave
62.
The type of waves that require medium to pass:
a)
Mechanical Waves
b)
Electromagnetic Waves
63.
The highest point on a wave is:
a)
the crest
b)
the trough
c)
the top
d)
the coast
64.
crest to crest or trough to trough
a)
crest
b)
trough
c)
amplitude
d)
wavelength
65.
a)
Series circuit
b)
Incomplete circuit
c)
Parallel circuit
d)
Power source
66.
a)
Parallel circuit
b)
Series circuit
c)
Incomplete circuit
d)
Switch
67.
A push or pull that can move an object is a
a)
fulcrum
b)
force
c)
machine
d)
lever
68.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
69.
What happens when two north poles of a magnet are placed together?
a)
they repel
b)
they attract
c)
they cancel each other out
d)
the strength of the magnet is doubled
70.
How many students take the bus to school?
a)
35
b)
20
c)
10
d)
15
71.
How many students take the bus to school?
a)
35
b)
20
c)
10
d)
15
72.
8 N to the left , and 4 N to the right. Find the net force. Is this balanced
a)
12 N Right No
b)
4 N Left No
c)
12 N Right Yes
d)
4 N Left Yes
73.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 n right
d)
50 N left
74.
45 m/s2 is the...
a)
Mass
b)
Force
c)
Acceleration
d)
weight
75.
Shaniqua noticed a collision outside the coffee shop where two cars collided and stuck together. What type of collision did she observe?
a)
Elastic
b)
Inelastic
76.
This happens to water at 0 degrees Celsius.
a)
Boils
b)
Freezes
c)
Heats
d)
All of them
77.
Scientists' favorite temperature scale, because it begins at the absolute coldest anything can get.
a)
Celsius
b)
Fahrenheit
c)
Kelvin
d)
All of them
78.
The faster molecules move,
a)
the higher the temperature
b)
the less temperature
c)
the same temperature
d)
I don't know
79.
Find the distance Sara walks from A to B, B to C then C to D?
a)
11m
b)
3m
c)
5m
80.
After completing one trip on a roller coaster, the roller coaster's ________ is zero.
a)
displacement
b)
reference point
c)
length
d)
distance
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