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Physical Science Units 1, 2 and 3

Total questions: 64

Worksheet time: 1hrs 10mins

Name
Class
Date
1.
Simple machines make work easier by increasing what?
a)
The distance over which work is done 
b)
The force needed to do work 
c)
The time required to do work
d)
The acceleration of a massive object 
2.

________________ is the rate at which work is done.

a)

Power

b)

Work

c)

Time

d)

Energy

3.

_______________ is done when a force acts on an object and the object moves in the direction of the force.

a)

Work

b)

Kinetic energy

c)

Watt

d)

Joule

4.

units for work are

a)

newtons

b)

joules

c)

meters

d)

seconds

5.
Is wood a conductor or insulator?
a)
Conductor
b)
Insulator
6.

How does thermal energy move?

a)

When objects touch.

b)

When objects stay still.

7.

Plastic is a great conductor of heat so it flows quicker.

a)

True

b)

False

8.

Metal is a great conductor of heat so it flows quicker.

a)

True

b)

False

9.

______________ are materials that RESIST the flow of heat or thermal energy.

a)

Conductors

b)

Insulators

10.

___________________ are materials that ALLOW heat and electricity to move easily through them.

a)

Conductors

b)

Insulators

11.

These are examples of

a)

Conductors

b)

Insulators

12.

These are examples of

a)

Insulators

b)

Conductors

13.

The sum of potential energy and kinetic energy equals

a)

work

b)

transformation

c)

total energy

d)

mechanical energy

14.

When a roller coaster is at the top of a hill it has

a)

high potential energy

b)

high kinetic energy

c)

low potential energy

d)

equal amounts of kinetic and potential energy

15.
The energy of motion.
a)
Potential Energy
b)
Kinetic Energy
16.
Stored energy.
a)
Potential Energy
b)
Kinetic Energy
17.

This is the energy that moves objects.

a)

cool

b)

nuclear

c)

chemical

d)

motion/mechanical

18.

This is energy that is stored for later use.

a)

kinetic energy

b)

potential energy

c)

motion/mechanical energy

d)

radiant energy

19.

Energy can not be _______.

a)

transformed

b)

converted/changed

c)

created or destroyed

d)

used

20.

What is Newtons 3rd law

a)

For every action there is an equal and opposite reaction

b)

Gravity

c)

The length that something can go

d)

How an object moves

21.
Newton's third law states that any action will have a(n) _______ and ______ reaction
a)
Equal and similar
b)
Equal and opposite
c)
Equal and different
d)
Greater and opposite
22.
What is Newton's First Law
a)
F=ma
b)
Every action has an equal and opposite reaction
c)
An object at rest stays at rest, an object in motion stays in motion. 
d)
Friction 
23.
With unbalanced forces, the object will move in the direction that the _______ force is being applied.
a)
larger 
b)
smaller 
c)
equal 
d)
less
24.
Equal and Opposite
a)
1st
b)
2nd
c)
3rd
d)
speed 
25.
What law is best described by inertia?
a)
1st
b)
2nd
c)
3rd
d)
law of conservation of mass
26.
The amount of inertia an object has depends on the object's ____
a)
Mass
b)
Size
c)
Speed
d)
Shape
27.

The sum of all of the forces acting on an object

a)

Net Force

b)

Inertia

c)

Gravity

d)

Newton

28.

What Newtons law does this picture represent

a)

Newtons 1st law

b)

Newtons 2nd law

c)

Newtons 3rdt law

d)

Newtons 4rth law

29.
Which type of force(s) will cause a change in an object's motion?
a)
gravity
b)
zero net force
c)
balanced forces
d)
unbalanced forces
30.

Objects in motion tend to stay in motion

a)

Newtons 1st Law

b)

Newtons 2nd Law

c)

Newtons 3rd Law

d)

None

31.
What is the formula to calculate speed?
a)
Speed = time/distance
b)
Speed = distance/time
c)
Speed = distance x time
d)
Speed = time x distance
32.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
33.
A measurement of how fast an object is moving
a)
Velocity
b)
Speed
c)
Vector
d)
Acceleration
34.
What is the difference between instantaneous speed and average speed?
a)
Average speed happens in a particular instant, Instantaneous speed is the speed of an object over a longer period of time.
b)
Instantaneous speed is never right, average speed is always right
c)
Instantaneous speed happens in a particular instant, Average speed is the speed of an object over a longer period of time.
d)
Do not pick this answer
35.

How do you fine average speed?

a)

distance divided by density

b)

multiply volume and mass

c)

distance divided by time

d)

time divided by density

36.

The center of the flower is yellow and fuzzy.

a)

qualitative data

b)

quantitative data

37.

The flower is 8 cm tall.

a)

qualitative data

b)

quantitative data

38.

What are observations that are measured or counted called?

a)

qualitative data

b)

quantitative data

39.

What are observations made using our five senses called?

a)

qualitative data

b)

quantitative data

40.

An explanation that uses observations to draw conclusions.

a)

Inference

b)

Variable

c)

Control Group

d)

Conclusion

41.

The group in an investigation that serves as a reference for comparison. The group not getting the test variable applied

a)

Inference

b)

Simulation

c)

Control Group

d)

Field Study Investigation

42.

The variables that do not change in an investigation

a)

Trails

b)

Constant

c)

Valid

d)

Model

43.

Jack is doing an experiment to see which shoes help him run the fastest. What will his independent variable be?

a)

The shoes he wears

b)

The track he runs on

c)

The time of day he runs

44.

The independent Variable is:

a)

What you keep the same in the experiment

b)

What you change in an experiment

c)

What you measure in an experiment

45.

A variable that is unchanged throughout the experiment is the:

a)

Controlled Variable

b)

Experimental Variable

c)

Independent Variable

d)

Dependent Variable

46.

This type of variable is what you DON'T change in a lab

a)

Control

b)

Independent

c)

Dependent

47.

The information you collect in an experiment in order to answer a question is called

a)

Charts

b)

Graphs

c)

Data

d)

Hypotheses

48.
An experiment is being done to determine how light affects the growth of small zinnia plants. One plant is placed in full sunlight, the second in a shaded area, the third in an unlit closet. The hypothesis of this experiment could be:
a)
Plants grow differently under different conditions.
b)
Zinnia plants in direct sunlight grow taller than zinnia plants in little or no sunlight.
c)
Many things, including sunlight, affect the growth of a plant.
49.
An experiment is being done to determine how light affects the growth of small zinnia plants. One plant is placed in full sunlight, the second in a shaded area, the third in an unlit closet. What is the independent variable in the experiment?
a)
the amount of light
b)
the type of plants
c)
the type of soil
d)
the length of the experiment
50.

The liquid in the graduated cylinder is blue.

a)

quantitative observation

b)

qualitative observation

c)

inference

d)

prediction

51.

The beaker contains 250 mL of vinegar.

a)

qualitative observation

b)

quantitative observation

c)

inference

d)

prediction

52.

An observation based on proven facts or data.

a)

subjective

b)

objective

53.

An observation based on opinion or feelings.

a)

subjective

b)

objective

54.

Which of the following best represents a quantitative observation?

a)

number, amount, measurement

b)

quality, characteristic, description

c)

opinions and relative terms

d)

subjective

55.

Which of the following best represents a qualitative observation?

a)

quality, description

b)

quantity, number

c)

based on fiction

d)

uses scientific instruments

56.

What are the two kinds of observations?

a)

quantitative and qualitative

b)

quantitative and observations

c)

inferences and predictions

d)

qualitative observations

57.

Collecting information by using the senses.

a)

observation

b)

inference

c)

prediction

58.

Which best describes the target?

a)

Precise, but not accurate

b)

Accurate but not precise

c)

Precise and accurate

d)

Neither accurate nor precise

59.
?
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
60.
A set of data are all close to each other, and they are close to the actual value.  This set of data can be described as...
a)
accurate
b)
precise
c)
both precise and accurate
61.

How close a measurement is to the accepted value is called..

a)

Accuracy

b)

Precision

c)

Significant

d)

Estimate

62.
This image is an example of...
a)
precision ONLY
b)
accuracy ONLY
c)
BOTH precision and accuracy
d)
NEITHER precision and accuracy 
63.
It is a measure of how close measurements come to each other when they are made in the same way
a)
Accuracy
b)
Precision
c)
Error
d)
Extrapolation
64.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision

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