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Kerne - Physical Science 2024 Midterm Review

Total questions: 55

Worksheet time: 28mins

Name
Class
Date
1.

Coal is classified as a _________ resource

a)

non-renewable

b)

renewable

2.

one disadvantage of fossil fuels as an energy source is ________

a)

cheap

b)

pollution

c)

abundant

d)

clean burning

3.

A natural resource that can be replaced at the same rate at which the resource is consumed

a)
renewable
b)

nonrenewable

4.

_______ is the most abundant fossil fuel in the world

a)

uranium

b)

oil

c)

coal

d)

natural gas

5.

the source of solar energy is the ________

a)

photo voltaic panels

b)

milky way galaxy

c)

wind power

d)

sun

6.

hydropower plants convert _________ energy into _________ energy

a)

kinetic, chemical

b)

electric, kinetic

c)

chemical, kinetic

d)

kinetic, electric

7.

used for stirring chemicals

a)

pipette

b)

stirring rod

c)

straw

d)

plastic spoon

8.

can laws be changed?

a)
no
b)

yes

9.

what is the factor being tested in an experiment?

a)

independent

b)

dependent

c)

constant

d)

control

10.

what will happen when an object with a density of 1.2 g/mL gets dropped into a bucket of water?

a)
it will sink.
b)

it will float

c)

it will do nothing

d)

i don't know

11.

A statement that describes what scientists expect to happen every time under a particular set of conditions

a)

conclusion

b)

hypothesis

c)

scientific theory

d)

scientific law

12.

Distance and direction of an object's change in position from the starting point.

a)

distance

b)

speed

c)

displacement

d)

motion

13.

_______ is a change in position in relation to a reference point

a)

speed

b)

motion

c)

displacement

d)

distance

14.

motion is described by _________, _______, _________

a)

distance

b)

direction

c)

speed

d)

all of them

15.

when the velocity of an object changed by speeding up or slowing down it is called _________

a)
acceleration
b)

speed

c)

velocity

d)

centripetal force

16.

speed is measured in what unit?

a)

seconds

b)

meters

c)

m/s^2

d)

m/s

17.

acceleration is measured in

a)

seconds

b)

meters

c)

m/s^2

d)

m/s

18.

energy is measured in ________

a)
Joules (J)
b)

Force (N)

c)

Mass (kg)

d)

speed (m/s)

19.

According to the law of conservation of Energy, the total amount of energy in the universe

a)

changes constantly

b)

varies on the day

c)

stays the same

d)

don't know

20.

Give an example of chemical potential energy.

a)

stretched rubber band

b)

spring

c)

gasoline

d)

an book high on a shelf

21.

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

a)

force

b)

velocity

c)

height

d)

mass

22.

True or False. A bus engine transfers chemical potential energy into kinetic energy so that the bus moves.

a)

True

b)

False

23.

Friction converts mechanical energy into _________

a)

kinetic energy

b)

potential energy

c)

mechanical energy

d)

thermal energy

24.

used to illustrate scientific data

a)

charts

b)

graphs

c)

models

d)

all of them

25.

most important safety rule in the lab

a)
read directions
b)

wear googles

c)

wash hands

d)

locate first aid supplies

26.

What substance is least dense?

a)

dish soap

b)

bolt

c)

ping pong ball

d)

lamp oil

27.

A place or object used for comparison to determine if an object is in motion

a)

speed

b)

reference point

c)

motion

d)

acceleration

28.

Speed that does not change

a)

total speed

b)

instantaneous speed

c)

average speed

d)

constant speed

29.

acceleration due to gravity on earth

a)
9.8 m/s^2
b)

9.8 m/s

c)

98 m/s

d)

98 m/s^2

30.

an example of an inclined plane

a)
stairs
b)

wheel barrow

c)

pulley

d)

car jack

31.

What are the three main fossil fuel energy sources; nonrenewable resources

a)

natural gas

b)

coal

c)

oil

d)

all of them

32.

a path that an electric current travels along

a)

light bulb

b)

circuit

c)

battery

d)

wire

33.

A circuit that contains more than one path for current flow.

a)

open circuit

b)

closed circuit

c)

parallel circuit

d)

series circuit

34.

forces acting on an object that combine and form a net force of zero

a)

friction

b)

air resistance

c)

unbalanced forces

d)

balanced forces

35.

Forces that cause a change in the motion of an object

a)

unbalanced forces

b)

balanced forces

c)

air resistance

d)

friction

36.

convert 72,000,000 to scientific notation

a)

7.2 X 10^-7

b)

7.2 X 10^7

c)

72 X 10^6

d)

0.72 X 10^8

37.

Another name for Newton's First Law

a)
Law of Inertia
b)

Law of action-reaction

c)

Law of acceleration

d)

Law of the law

38.

The tendency of an object to resist a change in motion

a)

mass

b)

viscosity

c)

force

d)

inertia

39.

______ affects an object's inertia

a)

speed

b)

mass

c)

velocity

d)

weight

40.

can be used to complete an electrical circuit

a)
metal wire
b)

plastic

c)

wooden stick

d)

yarn

41.

converts electrical energy to heat energy

a)

radio

b)

refrigerator

c)

toaster

d)

fan

42.

Which point demonstrates the greatest gravitational potential energy?

a)

yellow car

b)

pink car

c)

purple car

d)

green car

43.

used to move beakers around

a)

ring clasp

b)

test tube holder

c)

beaker tongs

d)

tweezers

44.

What is the SI unit for mass?

a)

kilogram

b)

liters

c)

pound

d)

ounce

45.

Convert the following measurement: 45 kg to g.

a)

450 g

b)

4500 g

c)

45000 g

d)

450000 g

46.

Convert the following measurement: 2,570 cm to km. What is the correct conversion?

a)

0.257 km

b)

25.7 km

c)

2.57 km

d)

0.0257 km

47.

Match the following names with the pictures of the lab equipment below. Then next to each piece of lab equipment, write what it is used for. Note: Not all words will be used. (2 pts each)

a)

Erlenmeyer flask

b)

Beaker

c)

Test tube

d)

Bunsen burner

48.
What is this distance vs. time graph representing?
a)
Constant Speed
b)
Acceleration (speeding up)
c)
Deceleration (slowing down)
d)
No motion
49.
What is the total displacement of the object represented in this motion graph?
a)
5 meters in the positive y direction
b)
4 meters in the positive y direction
c)
2 meters in the positive y direction
d)
0 meters
50.
During the second segment, which is between 50 seconds and 70 seconds, which direction is Tom moving?
a)
Tom was moving back towards his house
b)
Tom was moving down a hill
c)
Tom was moving towards the bus stop
d)
Tom was not moving
51.

The sum of all forces acting on an object is known as what?

a)

Balanced Forces

b)

Unbalanced Forces

c)

Net Force

d)

Gross Force

52.

If I am pushing a box with a force of 300 N, and the box has 150 N of friction with the floor, what is the net force on the box?

a)

Not enough information, we need to know the mass of the box

b)

150 N in the direction you are pushing

c)

150 N opposite the direction you are pushing

d)

300 N in the direction you are pushing

53.

The amount of force, exerted on an object due to gravity would be considered that object's _______.

a)

Net Force

b)

Weight

c)

Gravitational Acceleration

d)

Mass

54.

Which of the following is an example of a renewable energy source?

a)

Natural Gas

b)

Coal

c)

Solar Power

d)

Petroleum

55.

What is the term for the rate of change of velocity?

a)

Speed

b)

Acceleration

c)

Displacement

d)

Force

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