Free Printable 01 Scientific Thinking Review

1.

Each pizza at your party has 12 slices. Each person eats 4 slices. 25 people are coming to your party. What are the unit factors (check all that apply)

a)

12 slices = 1 pizza

b)

25 people = 1 party

c)

4 slices = 1 person

d)

1 pizza = 4 slices

e)

4 pizzas = 1 party

2.

How many seconds are there in one month of 31 days? Select all the unit factors you will need to solve the problem (select all that apply)

a)

1 year = 12 months

b)

60 seconds = 1 minute

c)

60 minutes = 1 hour

d)

365 days = 1 year

e)

24 hours = 1 day

3.

V = IR (voltage = current x resistance). Solve for R

a)

R = I/V

b)

R = V/I

c)

V = IR

4.

You perform an experiment with a car on a ramp. A string with a mass is tied to one end. You change the amount of the mass tied to the end of the string and measure the change in acceleration. Which variables go in which column of your data table?

a)

Mass in column 1, acceleration in column 2

b)

Acceleration in column 1, mass in column 2

c)

Length of string in column 1, acceleration in column 2

5.

You perform an experiment with a car on a ramp. A string with a mass is tied to one end. You change the amount of the mass tied to the end of the string and measure the change in acceleration. Which variables go in which axes of your graph?

a)

Mass on x axis, acceleration on y axis

b)

Acceleration on x axis, mass on y axis

c)

Length of string on x axis, acceleration on y axis

6.

You perform the Motion of a Battery-Powered Vehicle experiment. The column headings for your data table are Time (s) and Position (m). At 0s, the position is 0m, At 4.5s, the position is 15m. Using these two points, you calculate the slope. Which of these is the correct answer (two sig figs)

a)

3.3

b)

3.3 m/s

c)

3.3 s/m

7.

One US dollar = 6.80 Chinese yuan (as of 9-20). How many dollars is one yuan?

a)

$6.80

b)

$ 0.147

c)

$ 1.00

8.

y = kx. What happens to the value of y if x is tripled?

a)

1/3 as much as before

b)

3 times as much as before

c)

Same as before, no change

9.

y = k/x. What happens to the value of y if x is tripled?

a)

1/3 as much as before

b)

3 times as much as before

c)

Same as before, no change

10.

F = ma. F is ___ to m

a)

directly proportional

b)

inversely proportional

c)

proportional to the square

d)

inverseley proportional to the square

11.

a = F/m. a is __ to m

a)

directly proportional

b)

inversely proportional

c)

proportional to the square

d)

inverseley proportional to the square

12.

$F=Gm_1m_2\ /\ r^2;\ F\ is\ ...\ of\ r$

a)

directly proportional

b)

inversely proportional

c)

proportional to the square

d)

inverseley proportional to the square

13.

The problem says: I = ΔV / R ; Substitute into P = IΔV. Your result will be

a)

P = (R/ΔV) x ΔV

b)

P = I ΔV

c)

P = ΔV^2 / R

14.

What is wrong with reporting a length of 22.4072643 cm using a common ruler?

a)

The percent error is too high

b)

There are not enough significant figures

c)

There are too many significant figures

d)

There is nothing wrong with this measurement

15.

This measurement, 340 inches, has how many significant figures?

a)

1

b)

2

c)

3

16.

This measurement, 340. inches, has how many significant figures?

a)

1

b)

2

c)

3

17.

In this graph, what are the units for the dependent variable?

a)

Compact Discs

b)

Dollars

18.

In this graph, what are the units for slope?

a)

Dollars

b)

Compact Discs

c)

Dollars / Compact Disc

d)

Compact Discs / Dollar

19.

In this graph, what are the units for the independent variable?

a)

Compact Discs

b)

Dollars

20.

If you add the measurements 10.2, 9.5, 10.5, and 10.3, how many digits should be displayed to the right of the decimal point in the answer?

a)

0

b)

1

c)

2

d)

As many as needed

01 Scientific Thinking Review

Total questions: 20

Worksheet time: 14mins

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