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Unit 1 Test Review

Total questions: 70

Worksheet time: 6hrs 50mins

Name
Class
Date
1.

1.1.1

What does CER stand for

a)

Certainty, Experience, Reality

b)

Circular, Experiment, Rotation

c)

Crime, Expedition, Revolution

d)

Claim, Evidence, Reasoning

2.

1.1.1

Identify which of the following sentences represents a claim, which represents evidence and which represents reasoning.

a)

Air is matter.

1.

Claim

b)

We found that the weight of the ball increases by .5lbs each time we pumped more air into it.

2.

Evidence

c)

This shows that air has weight, one of the characteristics of matter.

3.

Reasoning

3.

1.1.1

Identify which of the following sentences represents a claim, which represents evidence and which represents reasoning.

a)

Cats make better pets than dogs

1.

Claim

b)

Cats are solitary animals. They are also natural predators of many common pests.

2.

Evidence

c)

As solitary creatures, Cats will need less attention from their owners. As natural predators of many common pests, they can reduce the number of pests in and around the property. This means that they require less from their owner and provide more benefit than other pets.

3.

Reasoning

4.

1.1.2

If the prompt is, "Is there a best color notebook to use for your science class?", which of the following would make a good claim?

a)

Yes, there is a best color but I'm not telling.

b)

There is no single "correct" color to use for a science notebook.

c)

There is only one correct color to use as a notebook for any subject.

d)

I have always used purple notebooks for science class.

5.

1.1.2

If the prompt is, "Do students who sleep get better grades? , which of the following would make a good claim?

a)

No, students who sleep do not study.

b)

Students who are well rested are likely to be able to focus, remember information, and participate in class.

c)

I will test this by sleeping in class.

d)

Yes, I think so.

6.

1.1.3

Which of the following is an example of evidence?

a)

Football players are 33% more likely to get injured than baseball players.

b)

Football is more dangerous than baseball.

c)

Baseball is a fun sport.

7.

1.1.3

Which of these is relevant evidence to this claim: Plants in bigger pots will grow taller.

a)

The researchers placed plants in pots of different sizes and let them grow for one month.

b)

Some plants grow taller than others when grown in large pots.

c)

According to the data, a plant grown in a 5 cm pot only grew to be 4 cm tall, where as a plant in a 10cm pot grow to be 8 cm tall.

d)

The researchers observed 10 plants total, 5 planted in smaller pots and 5 planted in larger pots.

8.

1.1.3

Which options provide relevant evidence to support the claim that students who get less sleep are more likely to perform poorly in academics. (Select up to two)

a)

According to the study, students who went to sleep later, causing them to get less sleep, scored an average of 30% lower on their exams.

b)

The claim of an article I read in another class was that students who sleep less do poorly on tests.

c)

Students reported feeling more sluggish over all, making it hard to focus and do well on their exams.

d)

According the the study, the kids were sleepy. When I am sleepy, I also do poorly on my assignments.

9.

1.1.4

Which reasoning explains the following evidence? "According to the data, a plant grown in a 5 cm pot only grew to be 4 cm tall, where as a plant in a 10cm pot grow to be 8 cm tall."

a)

When plants are placed in a bigger pot, the roots have more room to spread out, making it more optimal for a plant to grow taller.

b)

Sometimes, plants just enjoy being in a bigger pot. When a plant enjoys its pot more it will grow taller

c)

No one really knows why, it just happened.

d)

The evidence supports the claim that plants grow taller in a bigger pot because a plant grown in a 5 cm pot only grew to be 4 cm tall, where as a plant in a 10cm pot grow to be 8 cm tall.

10.

1.1.4

Which reasoning explains the following evidence? "According to the study, students who went to sleep later, causing them to get less sleep, scored an average of 30% lower on their exams."

a)

When a person has had less sleep they can have a harder time remembering things, focusing, and reading. All of these can result in mistakes on an exam which could explain the lower score.

b)

When a person has had less sleep they are often in a bad mood. Exams also put people in a bad mood.

c)

I got an A on my last history test after studying all night, so maybe they did the experiment with people who are bad at studying?

d)

The evidence supports the claim that people who get less sleep do poorly on exams because students who went to sleep later, causing them to get less sleep, scored an average of 30% lower.

11.

1.2.1

Which of the following is a possible quantitative observation about this picture?

a)

The blocks are made of wood

b)

That they block are light brown

c)

The blocks are about 15.5 cm long

d)

The blocks are not squares

12.

1.2.1

Which of the following is a possible qualitative observation about this picture?

a)

The average tree diameter is 500 cm

b)

The light that filters through the trees are in the 510 nm range

c)

The forest floor is a healthy green color

d)

Average height of the trees is 50 ft.

13.

1.2.2

Match the following quantities and units of measurement

a)

kilograms

1.

Mass

b)

Meters

2.

Length

c)

Seconds

3.

Time

14.

1.2.2

Match the following quantities and units of measurement

a)

grams

1.

Mass

b)

millimeters

2.

Length

c)

years

3.

Time

15.

1.2.3

Which of the following measurements is accurate and measures to the correct number of digits

(a)  

Choose from the below words
7 cm
7.1 cm
7.01 cm
3.0 cm
16.

1.2.3

Which of the following measurements is accurate and measures to the correct number of digits

(a)  
Choose from the below words
21.16 g
21.164 g
21 g
21.1643 g
17.

1.2.3

Which of the following measurements is accurate and measures to the correct number of digits

(a)  
Choose from the below words
3.2 cm
3.12 cm
3 cm
3.219 cm
18.

1.2.3

Which of the following measurements is accurate and measures to the correct number of digits

a)

1 min 23 seconds

b)

1 min 23.44 seconds

c)

1 min 20 seconds

d)

1 min 23.4 seconds

19.


1.2.1

Which of the following is a possible quantitative observation about this picture?

a)

The picture was taken on a hot dat

b)

The stone in the picture is light grey

c)

The stone pictures has a mass of 7.95 kg.

d)

The stone in the picture is resting on sand.

20.

1.2.1

Which of the following is a possible qualitative observation about this picture?

a)

The sunfish in the picture is 2.8 meters long

b)

The sunfish in the picture has a mass of about 493 kg.

c)

The large fish is a silvery white color.

d)

The water the diver is swimming in was 73.5 °C73.5\ \degree C

21.

1.3.1

Identify independent, dependent and control variables for the following experiment:

Does the amount of candy offered as payment affect how much laundry my little sister will fold?

a)

Candy offered (measured in pieces)

1.

Independent Variable

b)

Pairs of socks folded

2.

Dependent Vaiable

c)

amount of time after eating a meal

3.

Control Variable

22.

1.3.1

Identify independent, dependent and control variables for the following experiment:

Does the height above the ground a phone is dropped from affect how much damage the screen has from the drop?

a)

height above the ground

1.

Independent Variable

b)

Size of cracks in the screen

2.

Dependent Vaiable

c)

Surface the phone is dropped onto (stone tiles, wood floors, carpet, grass).

3.

Control Variable

23.

1.3.2

Choose the best hypothesis for "What is the effect of putting Cooking Spray on the bottom of a sled?"

a)

I think I will fall off the sled more often.

b)

If I put Cooking Spray on the bottom of my sled then the sled will get very hot while it slides.

c)

If I put Cooking Spray on the bottom of my sled it will be more slippery and let me slide faster

24.

1.3.1

A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is

a)

the male alligators

b)

the gender of the alligator

c)

the temperature

d)

the incubator

25.

1.3.1

A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The dependent variable is

a)

the temperature

b)

the size of the baby alligators

c)

the incubator

d)

the gender of the baby alligators

26.

1.3.2

A students was doing an experiment using the scientific method. One plant is placed in dim light and the other is placed in bright light. Every three days the student plans to count the green leaves. Which would be a good hypothesis for this experiment?

a)

Neither plant will grow, they only grow in sunlight

b)

If plants are places in bright light, then they will grow more green leaves than in dim light.

c)

If plants are place in clay pots, then they will grow more green leaves than plastic pots.

d)

If plants are in warmer temperatures, then they will grow more green leaves.

27.

1.3.3

What materials would be needed to conduct the following experiment "What is the effect of putting Cooking Spray on the bottom of a sled?" Select all that are correct.

a)

Cooking Spray

b)

A snowy hill to slide down and the distance the sled will move.

c)

A sled with a rider

d)

A stopwatch or phone to find how long it takes to slide down the hill.

e)

A cool teacher

28.

1.3.3

What materials would be needed to conduct the following experiment "How does the brightness of a grow light affect how many leaves a plant grows?" Select all that are correct.

a)

At least two plants

b)

A room with a stable temperature

c)

Dim and bright grow lights

d)

A stop watch

e)

Sunny Weather

29.

1.3.4

Re order the following steps to create an experimental procedure to test the hypothesis that plants will grow more leaves in bright light.

a)

Select 8 plants of the same type and size and place 4 in the dim light and 4 in the bright light.

b)

Clip each plant so that they have the same number of leaves.

c)

Allow the plants to grow for three months with all plants getting the same amount of water and fertilizer

d)

Count the number of leaves on each plant and record this number.

e)

Place your data into a visual organizer like a graph or table to show your results.

1)
2)
3)
4)
5)
30.

1.3.4

Re order the following steps to create an experimental procedure to test the hypothesis that chocolate ice cream has more mass than vanilla ice cream

a)

Select 20 measuring cups, measure and record the mass of each one.

b)

Carefully fill each cup so that 10 are filled with vanilla and 10 are filled with chocolate

c)

Record the mass of each filled cup and then subtract the mass of the measuring cup to find the mass of the ice cream.

d)

Average the masses of the 10 cups of vanilla ice cream. Then average the masses of the 10 cups of chocolate ice cream.

e)

Report your findings and clean up

1)
2)
3)
4)
5)
31.

1.4.1

Find the mean, or average, of the numbers below:

3, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 1

a)

3

b)

2

c)

1

d)

4

32.

1.4.1

Find the average of the numbers below:

1, 8, 7, 5, 6, 4, 7, 6

a)

5

b)

5.5

c)

6

d)

6.5

33.

1.4.1

Find the average of the numbers below:

20, 30, 24, 32

a)

26.5

b)

27.5

c)

27

d)

27.5

34.

1.4.2

Based upon the data shown in the picture, which student has the most precise data?

a)

Student A

b)

Student B

c)

Student C

d)

Cannot be determined

35.

1.4.2

Which of the following best explains how to identify a data set that is precise?

a)

When the average of a precise data set is taken, that number will be close to the correct answer.

b)

A precise data set will not have any repeated data points.

c)

A precise data set will have many measurements that are very close to one another

d)

A precise data set will be measured in very small units.

36.

1.4.2

Which of the following best explains how to identify a data set that is accurate?

answer choices

a)

When the average of an accurate data set is taken, that number will be close to the true value.

b)

An accurate data set will not have any repeated data points.

c)

An accurate data set will be measured in very small units.

d)

An accurate data set will have many measurements that are very close to one another

37.

1.4.2

Which student is the most ACCURATE?

a)

A

b)

B

c)

C

38.

1.4.3

A group of students are using a ruler to measure the diameter or a power cable. Which of the following is a possible source of error? (select all three correct answers)

a)

The students do not keep the wire straight and measures a diagonal section.

b)

Three different students measure the wire power cable and then average their results.

c)

The students don't place one side of the cable at the zero on the ruler and forget calculate the change from start to finish.

d)

The students use the inches side of the ruler but record their result as centimeters.

39.

1.4.3

A group of students are using a scale to measure the mass of a cookie. Which of the following is a possible source of error? (select both correct answers)

a)

The students forget to zero the scale between trials

b)

The students take turns putting the cookie on the scale.

c)

The students use the same cookie for every trial.

d)

A students takes a bite out of the cookie between trials.

40.

1.4.3

Which of the following could be sources of error for future labs in our class that you might not be able to control or avoid? Mark all that apply.

Hint: These sources of error are the reason we conduct multiple trials and then average the results.

a)

Measuring incorrectly with our tools.

b)

Not reading the directions before starting.

c)

imperfect equipment introducing random variables

d)

lack of practice with procedures leading to small mistakes by the experimenter.

41.

1.5.1

Reorder the following units from largest to smallest

a)

Kilometer

b)

meter

c)

centimeter

d)

millimeter

1)
2)
3)
4)
42.

1.5.1

Reorder the following units from largest to smallest

a)

Kilogram

b)

gram

c)

centigram

d)

milligram

1)
2)
3)
4)
43.

1.5.1

Match the following prefix's with their numeric value

a)

kilo-

1.

1,000

b)

centi-

2.

1 / 100

c)

milli-

3.

1 / 1000

44.

1.5.1

Rank the following from the largest to smallest measurements of distance

a)

1 km

b)

100m

c)

0.9 m

d)

10cm

e)

5 mm

1)
2)
3)
4)
5)
45.

1.5.1

Rank the following from the largest to smallest measurements of distance

a)

0.1 km

b)

1.0 m

c)

3 cm

d)

1.1 mm

e)

0.00032m

1)
2)
3)
4)
5)
46.

1.5.2

Convert 23 centimeters into meters

a)

0.023m

b)

2300m

c)

0.23m

d)

23,000m

47.

1.5.2

Convert 5.5 kilometers into millimeters

a)

5,500,000 mm

b)

5,500 mm

c)

0.0055 mm

d)

0.0000055 mm

48.

1.5.2

Convert 94 grams into kilograms

a)

0.094 kg

b)

94 kg

c)

94,000 kg

d)

0.94 kg

49.

1.5.2

Convert 4 minutes to seconds

a)

240 seconds

b)

4,000 seconds

c)

400 seconds

d)

60 seconds

50.

1.5.2

How many grams are in 32.3 kilograms?

a)

32,300 g

b)

0.0323 g

c)

0.000323 g

d)

32.3 g

51.

1.6.1

Match the following abbreviated symbols with what they represent.

a)

v

1.

The variable for Velocity

b)

ms\frac{m}{s}

2.

The Units for Velocity

c)

t

3.

The variable for time

d)

s

4.

The unit for time

52.

1.6.1

Use the drop down menu to identify what quantities are being asked for in the following word problem.

A startled rabbit runs across a road at night.  The rabbit is able to travels a ​ (a)   of 10 m for a ​ (b)   of 4 s in a straight line. At what ​ (c)   is the rabbit running?

Choose from the below words
displacement
time
velocity
53.

1.6.1

Which two ideas are combined to create the physics concept of velocity?

a)

How fast something is going

b)

How heavy something is

c)

How sleek the shape of something is

d)

What direction something is going

54.

1.6.3

Match the following

a)

v=Δdtv=\frac{\Delta d}{t}

1.

The equation for finding velocity

b)

Δd=v⋅t\Delta d=v\cdot t

2.

The equation for finding displacement from velocity

c)

t=Δdvt=\frac{\Delta d}{v}

3.

The equation for finding time from velocity

d)

Δ\Delta

4.

The symbol for change

55.

1.6.3

Jose walked 4 km in a straight line at 2 km/hr. How long did Jose walk for?

a)

2 hours

b)

8 hours

c)

0.5 hours

d)

2 km

56.

1.6.3

A vehicle travels 2345 m in a straight line toward the evening sun for 315s. What is its velocity?

a)

7.44 m/s

b)

0.13 m/s

c)

738,675 m/s

d)

7.44m

57.

1.6.3

What the car's displacement be after traveling with a velocity 18 m/s travel for 3600 seconds?

a)

77.7 km

b)

64.8 km

c)

51.7 km

d)

67.7 km

58.

1.6.2

Which data tables show acceleration? (select all that apply)

a)

b)

c)

d)

59.

1.6.2

Which Graphs show Constant Velocity?

a)

b)

c)

d)

60.

1.6.2

Which diagrams show acceleration

a)

b)

c)

d)

61.

1.7.1

What is the independent variable for this graph?

a)

iPhone Charging Speed

b)

Time (minutes)

c)

Capacity (% charged)

d)

The origin

62.

1.7.1

What is the dependent variable for this graph?

a)

Leona's Job Earnings

b)

Newspapers Delivered

c)

Total Pay (dollars)

d)

There isn't one.

63.

1.7.1

What is the IV?

a)

Hours of Sunlight Exposure

b)

Number of Tomatoes on Each plant

c)

Size of the tomatoes

d)

number of clouds each day

64.

1.7.2

If you were graphing this table on a grid that had 10 available spaces horizontally and vertically which of the following options would make the easiest to read and most accurate graph?

a)

every horizontal space is worth 4.5 hours. Every vertical space is worth $0.5

b)

every horizontal space is worth 1 hours. Every vertical space is worth $36

c)

every horizontal space is worth 5 hours. Every vertical space is worth $10

d)

every horizontal space is worth 0.5 hours. Every vertical space is worth $4.5

65.

1.7.2

If you were to graph this data set and your graph had 10 vertical lines to place your data on, how much would each line need to be worth to get an easy to read graph?

a)

Each line should always be worth 1 and I can use a ruler to extend the graph space.

b)

If I count by twos it will be easy to estimate the odd numbers half way between lines and I'll have enough space.

c)

I can place 3 on the first line, 8 on the second, 11 on the third, 8 again on the fourth. I'll only need 6 of the lines.

d)

The first number is 3 so I should count by 3s.

66.

1.7.3

Which data table matches the graph.

a)

b)

c)

d)

67.

1.7.3

Which data table matches the graph.

a)

b)

c)

d)

68.

1.7.3

Which graph matches the data table?

a)

b)

c)

d)

69.

1.7.4

Which statement below accurately represents the graph?

a)

as the hours worked increases the dollars earned increases at an increasing rate

b)

as the dollars earned increases the hours work decreases.

c)

as the hours worked increases the dollars earned increases at a constant rate

d)

as the hours worked increases the dollars earned decreases at a constant rate

70.

1.7.4

Which of the following is the best interpretation of the graph shown?

a)

Sarah travels towards school at a slower constant rate for 30 min, is stopped for 10 min, and then travels quickly for 10 min

b)

Sarah travels away from school at a slower constant rate for 30 min, is stopped for 10 min, and then travels quickly for 10 min

c)

Sarah speeds up as she moves away from school, except where she got stuck at a red light.

d)

Sarah has a friend who lives 30 minutes away from school.

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