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WorksheetsPhysical Science - Test 3
Total questions: 92
Worksheet time: 8hrs 40mins
Name
Class
Date
1.
What is a conclusion based on reasoning from evidence?
a)
inference
b)
hypothesis
c)
criteria
d)
affirming the antecedent
2.
What is the ability of a scientist to obtain consistent results from an experiment?
a)
reproducibility
b)
repeatability
3.
What are factors that are the same in all experimental groups?
a)
controlled variable
b)
independent variable
c)
criteria
d)
constraints
4.
What are the minimum characteristics that a design must have to function?
a)
criteria
b)
constraints
c)
controlled variable
d)
independent variable
5.
Which form of inference supposes that when the consequent is false the antecedent must be false?
a)
denying the consequent
b)
affirming the consequent
c)
inference
d)
independent variable
6.
What is a tentative explanation to describe a process?
a)
hypothesis
b)
inference
c)
criteria
d)
constraints
7.
What is the factor that is changed to test the hypothesis?
a)
independent variable
b)
controlled variables
c)
criteria
d)
constraints
8.
Which form of inference supposes that when the antecedent is true the consequent must also be true?
a)
affirming the antecedent
b)
denying the consequence
c)
reproducibility
d)
repeatability
9.
What are any additional characteristics required to solve the problem?
a)
constraints
b)
criteria
c)
controlled variables
d)
independent variable
10.
What is the amount of matter in an object?
a)
mass
b)
criteria
c)
inference
d)
hypothesis
11.
What is the ability of other scientists to reach the same conclusion by performing the same experiment under different conditions?
a)
repeatability
b)
reproducibility
c)
criteria
d)
hypothesis
12.
Write this number in scientific notation: 35,000,000
a)
3.5 x 10^7
b)
35 x 10^6
c)
3.5 x 10^(-7)
d)
35 x 10^(-6)
13.
Write this number in scientific notation: 0.00035
a)
3.5 x 10^(-4)
b)
35 x 10^(-5)
c)
3.5 x 10^4
d)
35 x 10^5
14.
Write this number in scientific notation: 0.0000046
a)
4.6 x 10^(-6)
b)
46 x 10^(-7)
c)
4.6 x 10^(6)
d)
46 x 10^7
15.
Write this number in scientific notation: 4,623,000
a)
4.623 x 10^6
b)
4623 x 10^3
c)
4.623 x 10^(-6)
d)
4623 x 10^(-3)
16.
What system of measurement was invented by French scientists and uses prefixes?
a)
metric system
b)
SI system
c)
FPS system
17.
What is the SI unit of mass?
a)
kilogram
b)
watt
c)
liter
d)
second
18.
What refers to how closely several measurements match each other?
a)
precision
b)
accuracy
19.
What system of measurement is commonly used in the US?
a)
FPS system
b)
metric system
c)
SI system
20.
What is the SI unit of time?
a)
second
b)
hour
c)
minute
d)
kilogram
21.
What is the amount of space matter takes up?
a)
volume
b)
mass
c)
meter
d)
metric
22.
What is the SI unit of length?
a)
meter
b)
centimeter
c)
second
d)
mass
23.
What is the closeness of a measurement to the quantity’s actual value?
a)
accuracy
b)
precision
24.
What is the SI unit of volume?
a)
liter
b)
kilogram
c)
second
d)
watt
25.
What is the amount of matter in a certain volume?
a)
density
b)
mass
c)
accuracy
d)
meter
26.
What is the gravitational force exerted on an object?
a)
weight
b)
displacement
c)
speed
d)
acceleration
27.
Who discovered the laws of motion?
a)
Sir Newton
b)
Einstein
c)
Pascal
d)
Archimedes
28.
What is the distance traveled by an object per unit time?
a)
speed
b)
displacement
c)
weight
d)
acceleration
29.
Which law states that for every action, there is an equal and opposite reaction?
a)
3rd law of motion
b)
2nd law of motion
c)
1st law of motion
30.
What is the force that causes an object to travel in a curved path rather than a straight line?
a)
centripetal force
b)
displacement
c)
acceleration
d)
terminal velocity
31.
What is the vector representing an object’s change in position?
a)
displacement
b)
distance
c)
speed
d)
acceleration
32.
Which law states that the velocity of an object does not change unless the object is acted upon by an external force?
a)
1st law of motion
b)
2nd law of motion
c)
3rd law of motion
33.
What is the velocity at which the magnitude of drag equals the object’s weight?
a)
terminal velocity
b)
speed
c)
acceleration
d)
centripetal
34.
What is any change in velocity?
a)
acceleration
b)
displacement
c)
speed
d)
weight
35.
Which law states that the force required to accelerate an object equals the object’s mass times its desired acceleration?
a)
2nd law of motion
b)
3rd law of motion
c)
1st law of motion
36.
What class of lever has input and output forces on opposite sides of the fulcrum? Give an example of this class of lever.
a)
class 1, see saw
b)
class 2, wheelbarrow
c)
class 3, tongs
37.
What is the SI unit of work?
a)
joule
b)
watt
c)
Newton
d)
efficiency
38.
Which simple machine is an inclined plane wrapped around a rod?
a)
screw
b)
pulley
c)
wedge
d)
lever
39.
What is the product of an object’s mass and velocity?
a)
momentum
b)
work
c)
efficiency
d)
power
40.
What is the transfer of energy from one object to another by a force?
a)
work
b)
power
c)
momentum
d)
efficiency
41.
What is the ratio of input distance to output distance?
a)
IMA
b)
AMA
c)
work
d)
efficiency
42.
What is the ratio of work output to work input?
a)
efficiency
b)
IMA
c)
AMA
d)
work
43.
What is the rate of doing work?
a)
power
b)
IMA
c)
AMA
d)
efficiency
44.
What class of lever has the input force applied between the output and the fulcrum? Give an example of this class of lever.
a)
class 3, tongs
b)
class 2, wheelbarrow
c)
class 1, see saw
45.
What is the SI unit of power?
a)
watt
b)
joule
c)
Newton
d)
pascal
46.
Which simple machine modifies the applied force and directs it to the side?
a)
wedge
b)
screw
c)
pulley
d)
lever
47.
What is the multiplication of input force that a machine provides?
a)
AMA
b)
IMA
c)
efficiency
d)
power
48.
Which simple machine consists of a wheel over which a rope passes?
a)
pulley
b)
screw
c)
wedge
d)
lever
49.
Which class of lever has the output force between the input and the fulcrum? Give an example of this class of lever.
a)
class 2, wheelbarrow
b)
class 1, see saw
c)
class 3, tongs
50.
What is the ability of gas to be compacted?
a)
compressibility
b)
density
c)
capillarity
d)
cohesion
51.
In which state of matter are the molecules practically unaffected by cohesion?
a)
gas
b)
liquid
c)
solid
d)
plasma
52.
What is the attraction of molecules to other molecules of the same substance?
a)
cohesion
b)
adhesion
53.
In Amonton’s Law, what remains constant?
a)
volume
b)
pressure
c)
temperature
54.
What are the two factors that affect gravitational pressure?
a)
depth
b)
fluid density
c)
temperature
d)
compression
55.
What is the tendency of a liquid to pull molecules near the surface back into the liquid?
a)
surface tension
b)
depth
c)
pressure
d)
compressibility
56.
In which state of matter are the molecules held together in a fixed position?
a)
solid
b)
liquid
c)
gas
d)
plasma
57.
What is the phenomenon in which liquids in thin tubes rise above or fall beneath their own levels?
a)
capillarity
b)
compressibility
c)
cohesion
d)
pressure
58.
How many significant digits are in 0.0040
a)
2
b)
4
c)
3
d)
1
59.
What is the force exerted per unit of area?
a)
pressure
b)
surface tension
c)
capillarity
d)
cohesion
60.
In Boyle’s Law, what remains constant?
a)
temperature
b)
volume
c)
pressure
61.
What is the attraction of molecules to other substances?
a)
adhesion
b)
cohesion
c)
surface tension
d)
pressure
62.
In which state of matter are the molecules able to move freely but remain attracted to each other?
a)
liquid
b)
gas
c)
solid
d)
plasma
63.
What is the SI unit of pressure?
a)
pascal
b)
watt
c)
joule
d)
Newton
64.
In Charles’ Law, what remains constant?
a)
pressure
b)
volume
c)
temperature
65.
What is the upward force exerted by a fluid on a solid object?
a)
buoyancy
b)
lift
c)
weight
d)
gravity
66.
What is an airtight metal box with thin, flexible walls to measure pressure?
a)
aneroid barometer
b)
barometer
c)
altimeter
d)
submarine
67.
What is the force on an object generated by relative motion between the object and a fluid and perpendicular to the direction of fluid flow?
a)
lift
b)
drag
c)
weight
d)
friction
68.
What is the principle that the buoyant force experienced by an object is exactly equal to the weight of the fluid displaced?
a)
Archimedes' principle
b)
Pascal's principle
c)
Magnus effect
d)
Bernoulli effect
69.
What is the fluid friction that tends to slow an object as it moves through a fluid?
a)
drag
b)
lift
c)
weight
d)
gravity
70.
What is a vessel that can float on top of the water or maneuver beneath the surface by changing its buoyancy?
a)
submarine
b)
foil
c)
lift
d)
Magnus effect
71.
What is the phenomenon of a spinning cylinder or ball causing lift?
a)
Magnus effect
b)
Bernoulli effect
c)
Pascal's principle
d)
Archimedes' principle
72.
What is the phenomenon of lateral pressure exerted by a moving fluid decreases as the fluid’s speed increases?
a)
Bernoulli effect
b)
Magnus effect
c)
Pascal's principle
d)
Archimedes' principle
73.
What is the science of shaping objects to allow the smooth flow of fluids around them and reduce drag?
a)
stream-lining
b)
drag-reducing
c)
buoyancy
d)
angle of attack
74.
What is a device used to measure air pressure?
a)
barometer
b)
altimeter
c)
foil
d)
Magnus effect
75.
What is a structure designed to produce lift as it moves through fluid?
a)
foil
b)
submarine
c)
barometer
d)
altimeter
76.
What is the angle of the foil relative to fluid flow?
a)
angle of attack
b)
streamlining
c)
altimeter
d)
buoyancy
77.
What is a device used to measure altitude?
a)
altimeter
b)
barometer
c)
aneroid barometer
d)
submarine
78.
What is the principle that if pressure is applied to a fluid inside a closed container, the pressure increase will be distributed equally through the container?
a)
Pascal's principle
b)
Magnus effect
c)
Bernoulli effect
d)
Archimedes' principle
79.
What is the condition in which a submarine is completely underwater but not sinking?
a)
neutral buoyancy
b)
buoyancy
c)
Bernoulli effect
d)
angle of attack
80.
What are the two principles of the kinetic theory of matter?
a)
all molecules of matter are in motion
b)
the warmer an object is, the faster its molecules move
c)
pressure and volume are indirectly proportional
d)
volume and temperature are directly proportional
81.
What is the formula for Amonton's law?
a)
P/T=P/T
b)
PV=PV
c)
V/T=V/T
82.
What is the formula for Boyle's law
a)
PV=PV
b)
P/T=P/T
c)
V/T=V/T
83.
What is the formula for Charles's Law
a)
V/T=V/T
b)
PV=PV
c)
P/T=P/T
84.
In the formula for efficiency, what is in the numerator?
a)
Wo
b)
Wi
c)
n
85.
What is the formula for Newtons second law of motion?
a)
F=ma
b)
p=m/v
c)
v=d/t
d)
PV=PV
86.
Which equation would you use in a problem about a hydraulic press?
a)
F/A=F/A
b)
PV=PV
c)
P/T=P/T
d)
F=ma
87.
In the acceleration formula, what does Vf stand for?
a)
final velocity
b)
initial velocity
c)
very fine
d)
a radio
88.
What is the magnitude of the force required to accelerate a 3500 kg truck at 13. m/s^2?
a)
45,500 N
b)
270 N
c)
45,500 kg
d)
270 m/s^s
89.
What is the average speed of a person who walks 18 km in 2.5 h?
a)
7.2 km/h
b)
45 km/h
c)
7.2 km
d)
45 h
90.
What is the number you add to Celsius temperatures to convert them to Kelvin?
a)
273.15
b)
9.81
c)
3.14
d)
32
91.
If the velocity of a car changes from 13 m/s to 29 m/s, what is the final velocity?
a)
29 m/s
b)
13 m/s
c)
16 m/s
d)
2.2 m/s
92.
What is the density of an object with a mass of 68 g and a volume of 3.5 cm^3?
a)
19 g/cm^3
b)
238 g/cm^3
c)
19 g
d)
238 cm^3
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