Quiz about Cumulative Exam CP

Question 1

What is the part of an experiment that serves as a standard for comparison?

Accepted Answer

Control Group

Answer

Constant

Answer

Hypothesis

Answer

Variable

Question 2

A testable prediction that predicts a cause and effect relationship between variables is a(n) ____.

Accepted Answer

hypothesis

Answer

analysis

Answer

observation

Answer

inference

Question 3

Which of the following is a quantitative observation?

Accepted Answer

The dog has two legs.

Answer

The dog is small.

Answer

The dog is cute.

Answer

The dog is fuzzy.

Question 4

A group of students is playing tug-of-war. The students on both sides of the rope are pulling with equal force so that the rope is not moving. This is an example of

Accepted Answer

balanced forces

Answer

unbalanced forces

Answer

acceleration

Answer

displacement

Question 5

The upward force on an object falling through the air is ____.

Accepted Answer

air resistance

Answer

momentum

Answer

inertia

Answer

gravity

Question 6

The relationship among mass, force, and acceleration is explained by ____.

Accepted Answer

Newton's 2nd Law of Motion

Answer

Law of Conservation of Momentum

Answer

Newton's 1st Law of Motion

Answer

Newton's 3rd Law of Motion

Question 7

"To every action there is an equal and opposite reaction" describes which law?

Accepted Answer

Newton's 3rd Law of Motion

Answer

Law of Conservation of Momentum

Answer

Newton's 1st Law of Motion

Answer

Newton's 2nd Law of Motion

Question 8

Calculate the force on an object that has a mass of $$10 kg$$ and an acceleration of $$4 m/s^2$$ .

Accepted Answer

40 N

Answer

8 N

Answer

2.5 N

Answer

0.4 N

Question 9

A 500 N force is applied to a $$25 m/s^2$$ object. The mass of the object is ____.

Accepted Answer

20 kg

Answer

12,500 m/s

Answer

12,500 kg

Answer

20 m/s

Question 10

The ____ of an object does not change, but its _____ can, based on its location.

Accepted Answer

mass, weight

Answer

mass, volume

Answer

weight, mass

Answer

weight, volume

Question 11

The speed you read on a speedometer is ____.

Accepted Answer

instantaneous speed

Answer

constant speed

Answer

average speed

Answer

velocity

Question 12

3 m/s north is an example of a(n) _____

Accepted Answer

velocity

Answer

speed

Answer

time

Answer

acceleration

Question 13

15. Motion is a change in _____.

Accepted Answer

position

Answer

time

Answer

speed

Answer

velocity

Question 14

An indicator that orients you when describing motion is called the __________.

Accepted Answer

reference point

Answer

time

Answer

speed

Answer

point of motion

Question 15

A cross-country runner runs 10 km in 40 minutes. What is his average speed?

Accepted Answer

0.25 km/min

Answer

30 km/min

Answer

4 km/min

Answer

400 km/min

Question 16

What does the slope of a distance vs. time graph tell you?

Accepted Answer

the speed of the object

Answer

the total distance traveled

Answer

the time it took for the object to travel

Answer

the acceleration

Question 17

A horizontal (flat) line on a velocity vs. time graph shows ____ acceleration.

Accepted Answer

zero

Answer

positive

Answer

negative

Answer

changing

Question 18

The ____ energy of an object increases with its height.

Accepted Answer

gravitational potential

Answer

chemical potential

Answer

kinetic

Answer

thermal

Question 19

An object that has kinetic energy must be

Accepted Answer

in motion

Answer

lifted above Earth's surface

Answer

at rest

Answer

changing direction

Question 20

The law of ____ states that energy in a system can change forms but can never be created or destroyed.

Accepted Answer

conservation of energy

Answer

consecration of energy

Answer

conversion of energy

Answer

construction of energy

Question 21

The kinetic energy of an object increases as its ______ increases.

Accepted Answer

speed

Answer

height

Answer

volume

Answer

potential energy

Question 22

Energy stored in food would be considered

Accepted Answer

chemical potential

Answer

kinetic

Answer

thermal

Answer

gravitational potential

Question 23

Conduction is the transfer of heat energy by______

Accepted Answer

direct particle contact

Answer

speed

Answer

density differences

Answer

potential energy

Question 24

An example of an energy conversion from kinetic to thermal energy would be

Accepted Answer

friction

Answer

television

Answer

flower

Answer

gravity

Question 25

Green plants convert light energy from the sun into during photosynthesis.

Accepted Answer

chemical potential energy

Answer

gravitational potential energy

Answer

thermal energy

Answer

mechanical energy

Question 26

A constant force of 2.0 N is used to push a box 4.0 m across the floor. How much work is done?

Accepted Answer

8 J

Answer

6 J

Answer

12 J

Answer

24 J

Question 27

The rate at which work is done is ____.

Accepted Answer

power

Answer

force

Answer

efficiency

Answer

momentum

Question 28

The force or push that causes electric charges to move is called .

Accepted Answer

voltage difference

Answer

resistance

Answer

current

Answer

static electricity

Question 29

Electric charges always flow from areas to areas.

Accepted Answer

positive

Answer

negative

Answer

neutral

Answer

negative

Question 30

A material through which electrons do NOT flow easily is a(n) .

Accepted Answer

insulator

Answer

fuse

Answer

conductor

Answer

circuit breaker

Question 31

Which of the following statements about electric charge is true?

Accepted Answer

Electrical forces act at a distance.

Answer

Objects must be touching one another to exert electrical force.

Answer

Air cannot conduct electricity; it is conducted only by solid materials.

Answer

Opposite electric charges always repel one another.

Question 32

What is the current produced by a 9-volt battery flowing through a resistance of 0.2 ohms?

Accepted Answer

45 amps

Answer

1.8 amps

Answer

0.022 amps

Answer

8.8 amps

Question 33

Which two areas of physical science are closely related to the development of electric motors and generators?

Accepted Answer

electricity and magnetism

Answer

sound and light

Answer

electricity and sound

Answer

light and magnetism

Question 34

Which of the following will decrease the strength of the magnetic field around a wire?

Accepted Answer

using less loops around the iron core

Answer

increasing the current flowing through the wire

Answer

flipping the direction of the current flowing through the wire

Answer

using a larger iron core

Question 35

This exerts a force that causes other electric charges to move.

Accepted Answer

B. electrical fields

Answer

A. electrical poles

Answer

C. insulators

Answer

D. conductors

Question 36

Refraction occurs when a wave changes its as it passes through a different medium.

Accepted Answer

speed

Answer

color

Answer

frequency

Answer

intensity

Question 37

Houses with carpet are much quieter than houses with tile or hardwood floors because of sound wave

Accepted Answer

absorption

Answer

diffraction

Answer

reflection

Answer

refraction

Question 38

Which is an example of a compressional wave?

Accepted Answer

sound wave

Answer

X-ray

Answer

gamma ray

Answer

water wave

Question 39

Increasing the amplitude of a sound wave will make it

Accepted Answer

louder

Answer

have a higher pitch

Answer

travel faster

Answer

produce beats

Question 40

Wave A carries more energy than wave B. Wave B must have a smaller ___ than wave A.

Accepted Answer

amplitude

Answer

frequency

Answer

wavelength

Answer

speed

Question 41

In order for reflection to occur, the wave must ___ an object.

Accepted Answer

bounce off

Answer

bend around

Answer

pass through

Answer

be absorbed by

Question 42

Light waves travel the fastest in ___

Accepted Answer

empty space

Answer

a solid

Answer

a liquid

Answer

a gas

Question 43

Sound waves travel the fastest in ___

Accepted Answer

a solid

Answer

a liquid

Answer

a gas

Answer

empty space

Question 44

The bending of light waves as they bend around an object is called ___

Accepted Answer

diffraction

Answer

reflection

Answer

refraction

Answer

interference

Question 45

The amount of energy needed to change a material from a liquid to a gas is the heat of _____________.

Accepted Answer

vaporization

Answer

fusion

Answer

sublimation

Answer

condensation

Question 46

When two or more substances are physically combined, the result is a(n) ____________.

Accepted Answer

mixture

Answer

chemical change

Answer

element

Answer

compound

Question 47

The air that you breathe is an example of a(n) _______ solution.

Accepted Answer

gaseous

Answer

solid

Answer

liquid

Answer

plasma

Question 48

The most common state of matter in the universe is __________.

Accepted Answer

plasma

Answer

solid

Answer

liquid

Answer

gas

Question 49

The color of ink is a __________.

Accepted Answer

B. physical property

Answer

A. physical change

Answer

C. chemical change

Answer

D. chemical property

Question 50

Three examples of physical changes are

Accepted Answer

boiling of water, blowing up a balloon, and melting a candle

Answer

sawing wood, crushing a can, and burning a marshmallow

Answer

burning of gasoline, rotting an egg, and exploding fireworks

Answer

freezing of water, evaporation of gasoline, and rusting of a nail

Question 51

Which of the following is evidence that a physical change has occurred?

Accepted Answer

Broken glass

Answer

Rust

Answer

Bubbles

Answer

Formation of a solid precipitate

Question 52

__________ is another name for a homogeneous mixture.

Accepted Answer

Solution

Answer

Liquid

Answer

Substance

Answer

Suspension

Question 53

In which phase of matter are the molecules of the substance farthest apart from each other?

Accepted Answer

gas

Answer

solid

Answer

liquid

Answer

crystal

Question 54

Atoms of elements in the same group of the periodic table share the same

Accepted Answer

number of valence electrons

Answer

number of energy levels

Answer

atomic numbers

Answer

atomic masses

Question 55

How many electrons will a neutral atom of carbon have if its nucleus has 6 protons and 8 neutrons?

Accepted Answer

6

Answer

2

Answer

8

Answer

14

Question 56

Which particles determine the atomic number of an element?

Accepted Answer

Protons only

Answer

Neutrons and protons

Answer

Neutrons only

Answer

Protons and electrons

Question 57

The total number of neutrons in the nucleus of any atom is equal to the

Accepted Answer

mass number of the atom

Answer

atomic number

Answer

atomic number minus the mass number

Question 58

Two different isotopes of an element have different ___

Accepted Answer

numbers of neutrons

Answer

numbers of protons

Answer

atomic numbers

Answer

nothing is different about them

Question 59

Which of the following is a transition metal?

Accepted Answer

Nickel

Answer

Calcium

Answer

Aluminum

Answer

Tellurium

Question 60

An atom is neutral because

Accepted Answer

the numbers of protons and electrons are equal

Answer

neutrons balance the protons and electrons

Answer

nuclear forces stabilize the charges

Answer

the numbers of protons and neutrons are equal

Question 61

An unstable nucleus results from too many or too few ___

Accepted Answer

neutrons

Answer

protons

Answer

electrons

Answer

radons

Question 62

The chemical bond formed when two atoms share electrons is called a(n)

Accepted Answer

Covalent bond

Answer

Ionic bond

Answer

Metallic bond

Answer

Electron bond

Question 63

Which pair of atoms will combine with each other and form an ionic bond?

Accepted Answer

Ca and Br

Answer

C and O

Answer

C and H

Answer

Ca and Mg

Question 64

Which element is most likely to gain electrons in a chemical reaction?

Accepted Answer

Br

Answer

Kr

Answer

K

Answer

Ca

Cumulative Exam CP

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