physics test chapter 1 & 2

1.

1 point

What is the volume of a sphere with a radius of 18 meters?

7800 pie m^3

4400 pie m^3

5800 pie m^3

430 pie m^3

1900 pie m^3

2.

1 point

You are measuring the speed at which a marble rolls down an inclined plane. Which set of measurements is the most precise and most accurate if the actual speed is 4 m/s?

4.10 m/s, 4.15 m/s, 4.00 m/s, 3.90 m/s

11 m/s, 13 m/s, 3.4 m/s, 2.0 m/s

5.0 m/s, 5.5 m/s, 3.2 m/s, 3.0 m/s

6.10 m/s, 6.15 m/s, 5.92 m/s, 5.90 m/s

3.10 m/s, 3.15 m/s, 2.92 m/s, 2.90 m/s

3.

1 point

Sally makes a pendulum using a 10 cm long string attached to a 6 g ball. She measures the time it takes for one back-and-forth swinging motion and repeats the experiment with several different lengths of string. Which of the following is the dependent variable in her experiment?

time for on swinging motion

length of the string

distance the pendulum swings

temperature of the pendulum

mass of the pendulum ball

4.

1 point

One lunar cycle is 30 days. Today Morris is 63 years old. About how many complete lunar cycles has Morris been alive for?

5.17 cycles

767 cycles

0.172 cycles

63.0 cycles

1890 cycles

5.

1 point

The statement, "The Moon is made of Swiss cheese," would best be described within the scientific method as a(n)

conclusion

test

analysis

hypothesis

question

6.

1 point

Which of following best shows 0.00331 kg in scientific notation using the correct number of significant digit?

3.31*10^-3 kg

33.1*10^-4 kg

3*10^-3 kg

3.3*10^-3 kg

0.331*10^-2kg

7.

1 point

The branch of science in which you learn about the structure of matter and how matter changes from one form to another is called

psychology

biology

chemistry

physics

anatomy

8.

1 point

Which of the following equations is mathematically equivalent to F=qE?

q=EF

q=F/E

E=qF

qE=EF

E=q/F

9.

1 point

which of the following is the best example of scientific evidence?

instructions by a judge to a jury as to what information they may use when considering a case.

testimony of police officer, including the recovery and identification of fingerprints.

a defendant's plea of "not guilty"

the verdict of the jury in civil trial.

the results of a trial described in an online encyclopedia.

10.

1 point

Which of these statements is quantitative?

The ice is so smooth that it is nearly frictionless.

The kinetic energy of an object decreases when it moves slower.

It is very humid outside today.

It took seven trials of the experiment for the researcher to gather enough data.

The math involved in this theory is very difficult.

11.

1 point

What is the smallest particle of an element, such as aluminum, that you can have?

an atom

a photon

a quantum

a newton

a charge

12.

1 point

What is an action that ca make things move, change direction, or stop?

matter

force

information

mechanics

frequency

13.

1 point

What is the volume of a cube measuring 2.0 m on each side?

4.0 m

2.0 m

24 m

33 m

8.0 m

14.

1 point

Which of these is a derived quantity?

density

time

luminous intensity

length

temperature

15.

1 point

What is exchanged every time that something gets hotter, colder, faster, or slower?

biology

physics

chemistry

energy

electrons

16.

1 point

Which of these statements is qualitative?

My parents traveled to Switzerland fifteen years ago.

Max's high score is 132,550.

Tomorrow is her little brother's third birthday!

My piano teacher's cat weighs 8.5 lbs.

Carly is wearing her red dress.

17.

1 point

Which is the best description of how physics and biology are different?

Physics deals with energy and matter, whereas biology does not.

Physics is concerned with the fundamental properties of matter, whereas biology is concerned with the interactions among and within complex, living organisms.

Physics deals with atoms and molecules, whereas biology does not.

Physics uses the scientific method, whereas biology does not.

Physics is a quantitative science, whereas biology is a qualitative science.

18.

1 point

How many seconds are there in exactly 7 hours and 35 minutes?

25200 s

1.264*10^5 s

2520 s

42.00 s

27300 s

19.

1 point

What is the role of a prototype in the engineering design process?

It is the subsystem that is a part of a more complicated system.

He or she is the engineer who carries out the process.

It serves as a model that is used to test how well the design works.

It is the report that documents the conclusions of the testing.

It is the design concept that consumes the least energy.

20.

1 point

Which is the most scientific way to refute a statement that the surface of Lake X is round?

Take the person to the lake and point out that it must be flat.

Argue louder than the person who made the statement.

Dismiss the person who said it as being uniformed.

Conduct an experiment that provides evidence about the shape of the lake's surface.

Tell the person that water cannot have a round shape.

21.

1 point

Allie takes 105.63 minutes to swim 2.4 miles, 352 minutes to bike 112 miles, and 653.2 minutes to run 26.2 miles. Which shows her total time with the correct number of significant digits?

1100 min

1110.83 min

1111 min

1110.8 min

1000 min

22.

1 point

In an investigation, a student collected data of the volume of a liquid at various times as it gradually evaporated. Which would be the best kind of graph or chart to present the data?

line graph

ticker tape chart

bar chart

depth chart

scatter plot

23.

1 point

Varian conducts an experiment and concludes that Earth's gravity acts upward during his experiment. What is the scientific way to analyze his explanation?

Turn away and ignore him.

Attempt to repeat his experiment to see if you obtain the same results.

Tell him that the teacher says the opposite.

Show him the page in physics a textbook that says that gravity acts downward.

Drop a book to demonstrate that gravity pulls the book downward.

24.

1 point

which action best illustrates a direct application of physics in a career?

An eye doctor compares the sharpness of vision for different eyeglass prescriptions.

A broadway performer sings in a musical in New York City.

A teacher gives lessons about the analysis of English literature.

A business person manages a company's interactions with other companies.

A chef uses a variety of spices to cook steak.

25.

1 point

Davis is trying to determine the average acceleration of his bike. He does this by dividing the change in speed 10 m/s, by the time it took, 13.77 s. Which of the following answers shows the correct number of significant figures in his answer?

0.72622 m/s

0.7 m/s

0.726 m/s

0.73 m/s

0.7262 m/s

26.

1 point

If you were conducting a physics experiment using a small laser, which of these safety concerns should be your top priority?

restraint for moveable heavy objects

eye protection

latex gloves for skin protection

proper chemical disposal

eye wash availability

27.

1 point

Which of the following statements is true about the process of the engineering design cycle?

Engineers who lack confidence in their designs will test their prototypes, but other engineers do not.

Prototypes should be avoided.

Evaluating a product against its constraints ends the design cycle.

There is often more than one solution to an engineering problem.

The engineering design cycle differs from the scientific method because the former is not iterative.

28.

1 point

Which pair of topics below are the most closely related?

Vectors and Optics

Mechanics and Chemistry

None of these are closely related to each other.

Magnetism and Electricity

Quantum Physics and Sound Waves

29.

1 point

Naomi conducts an experiment to find the density of an ice cube. Which might be a source of uncertainty in her measurement?

She does not know where the ice cube came from.

More than one of these can contribute to uncertainty in her experiment.

The air conditioner in the lab is broken, so the ice cube melts slightly between her first and second trials.

Her lab partner is absent.

She accidentally drops the ice cube on the floor.