WorksheetsConceptual Science Sem 1 Exam Review
Total questions: 44
Worksheet time: 22mins
Name
Class
Date
1.
A factor that changes in an experiment from manipulation of the independent variable is the _______________. (ch.1)
a)
control
b)
hypothesis
c)
constant
d)
dependent variable
2.
A statement that describes what happens in nature is a _______________. (ch.1)
a)
scientific law
b)
scientific theory
c)
theory
d)
variable
3.
A beaker contains 0.32 L of water. The beaker's volume is _______________ milliliters. (ch.1)
a)
3.2
b)
0.032
c)
32
d)
320
4.
A standard for comparison that helps to ensure that the experimental result is caused by the condition being tested is the _______________. (ch.1)
a)
control
b)
independent variable
c)
constant
d)
dependent variable
5.
In a graph, the variable on the horizontal axis is the _______________. (ch.1)
a)
variable with the largest range
b)
variable with the smallest range
c)
dependent variable
d)
independent variable
6.
Which of the following is correctly listed from largest to smallest? (ch.1)
a)
meter, centimeter, millimeter, kilometer
b)
kilometer, millimeter, meter, centimeter
c)
kilometer, meter, centimeter, millimeter
d)
millimeter, centimeter, meter, kilometer
7.
The SI unit for length is the _____. (Ch.1)
a)
gram
b)
meter
c)
centimeter
d)
inches
8.
Which one of the following is the best example of technology? (ch.2)
a)
C.B. (citizen's band) radios for cars and boats
b)
exploring how atoms are put together
c)
equations for the "big bang" theory of the origin of the universe
d)
classifying differences between normal and cancerous cells
9.
Three of the statements below are important goals of technology; one is the chief goal of science. Which one represents the goal of science? (ch.2)
a)
to develop useful products
b)
to solve some of the problems of society
c)
to understand how nature works and what laws exist in nature
d)
to meet the special needs of individuals who are handicapped
10.
A new type of telescope has been built that uses electronics to "see" the stars by the radio signals they emit. This has helped astronomers classify stars better and learn more about the life of a star. Which principle is best illustrated in this example? (ch.2)
a)
Every technology has advantages and disadvantages.
b)
Some technologies can be viewed as a system.
c)
Every technology affects the environment in some way.
d)
Science and technology help to advance one another.
11.
a _______ is a smaller version of the real production equipment that closely models actual manufacturing conditions. (ch.2)
a)
Prototype
b)
Model
c)
Simulation
d)
Pilot Plant
12.
A feather will fall through the air more slowly than a brick because of _______________. (ch.3)
a)
gravity
b)
air resistance
c)
inertia
d)
momentum
13.
The SI unit of force is the _____. (ch.3)
a)
Watt
b)
Kilowatt
c)
Hertz
d)
Newton
14.
2. A force caused by two surfaces pushing against each other (ch.3)
a)
Friction
b)
Distance
c)
displacement
d)
Average Speed
e)
Instantaneous Speed
15.
3. The speed of an object and the direction of its motion (ch.3)
a)
Velocity
b)
Friction
c)
Distance
d)
Displacement
e)
Average Speed
16.
5. The total distance an object travels divided by the time of travel (ch.3)
a)
Average Speed
b)
Friction
c)
Distance
d)
Displacement
e)
Instantaneous Speed
17.
7. Any change in position (ch.3)
a)
Motion
b)
Friction
c)
Distance
d)
Displacement
e)
Average Speed
18.
8. The distance and direction an object moves from its starting point (ch.3)
a)
Displacement
b)
Friction
c)
Distance
d)
Average Speed
e)
Instantaneous Speed
19.
The statement "to every action there is an equal and opposite reaction" is _______________. (ch.4)
a)
the law of conservation of momentum
b)
Newton's first law of motion
c)
Newton's second law of motion
d)
Newton's third law of motion
20.
The relationship among mass, force, and acceleration is explained by _______________. (ch.4)
a)
Newton's first law of motion
b)
Newton's second law of motion
c)
Newton's third law of motion
d)
the conservation of momentum
21.
The amount of gravitational force between objects depends on their _______________. (ch.4)
a)
frictional forces
b)
speed and direction
c)
inertia
d)
masses and the distances between them
22.
The motion of an object parallel to Earth's surface is _______________. (ch.4)
a)
horizontal
b)
vertical
c)
weightlessness
d)
momentum
23.
The inertia of an object depends on its _______________. (ch.4)
a)
momentum
b)
speed
c)
mass
d)
weight
24.
Acceleration due to gravity is ______________. (ch.4)
a)
98 m/s^2
b)
9.8 m/s^2
c)
9.8 m/s
d)
0.98 m/s
25.
Which of the following is not used to calculate kinetic energy? (ch.5)
a)
mass
b)
weight
c)
height
d)
speed
26.
Which of the following is not used to calculate potential energy? (ch.5)
a)
mass
b)
gravitational acceleration
c)
height
d)
speed
27.
The _______________ energy of an object increases with its height. (ch.5)
a)
chemical
b)
kinetic
c)
thermal
d)
potential
28.
The SI unit of work or energy is the ____. (ch.5)
a)
joule
b)
watt
c)
newton
d)
m/s
29.
A machine that changes only the direction of a force has a mechanical advantage of _______________. (ch.6)
a)
10
b)
5
c)
2
d)
1
30.
A bar that is free to pivot about a fixed point is a _______________. (ch.6)
a)
lever
b)
wedge
c)
fulcrum
d)
ramp
31.
The amount by which a machine multiplies an input force is called the _______________. (ch.6)
a)
ouput force
b)
efficiency
c)
fulcrum
d)
mechanical advantage
32.
What does letter B represent? (ch.7)
a)
Earth
b)
Moon
c)
Sun
33.
The Moon _______ the light of the Sun. (ch.7)
a)
refracts
b)
reflects
c)
absorbs
34.
The same side of the Moon is always visible to Earth. (ch.7)
a)
True
b)
False
35.
The _______________ is a vast disk of icy comets near Neptune's orbit. (ch.8)
a)
Oort Cloud
b)
Kuiper Belt
c)
Sedna
d)
asteroid belt
36.
The astronomer who first viewed the moons of Jupiter was _______________. (ch.8)
a)
Copernicus
b)
Kepler
c)
Galileo
d)
Aristotle
37.
Our current model of the solar system is the _______ or sun-centered model. (ch.8)
a)
Geocentric
b)
Heliocentric
38.
The conditions on Earth (temperature, water, etc.) most resemble which planet? (ch.8)
a)
Mars
b)
Venus
c)
Mercury
d)
Earth does not resemble any other planet
39.
The SI unit for temperature is the _____; The metric unit for temperature is _____; and yet the US uses _____. (ch.9)
a)
Celsius, Fahrenheit, Kelvin
b)
Fahrenheit, Celsius, Kelvin
c)
Kelvin, Celsius, Fahrenheit
d)
Kelvin, Fahrenheit, Celsius
40.
The process by which engine fuels burn is _______________. (ch.9)
a)
radiation
b)
convection
c)
combustion
d)
insulation
41.
What is #1? (ch.10)
a)
Equilibrium
b)
Wavelength
c)
Crest
d)
Trough
42.
What is #2? (ch.10)
a)
Equilibrium
b)
Crest
c)
Trough
d)
Amplitude
43.
What is #3? (ch.10)
a)
Amplitude
b)
Wavelength
c)
Crest
d)
Trough
44.
__________ is the bending of a wave caused by a change in its speed as it moves from one medium to another. (ch.10)
a)
diffraction
b)
diffusion
c)
reflection
d)
refraction
100 %
