Physical Science Final Exam 2011-2012

1.

1 point

Which of the following does NOT describe an acid?

Can be strong or weak.

Formula usually begins with "H"

pH lower than 7

Taste bitter

2.

1 point

What is NOT true of neutral substances?

The pH is greater than 7.

They are either pure water or salts.

They won't change litmus or hydrion papers' colors.

They are pH balanced.

3.

1 point

What does constant speed look like on an acceleration graph?

An upward-sloped line

A horizontal line (slope of zero)

A downward-sloped line

A vertical line

4.

1 point

How do metal ions become positive?

They give away electrons.

They give electrons.

They share electrons.

They do fusion.

5.

1 point

Which is NOT a method of making a solution better?

Heat it up.

Add more solute.

Stir it up.

Make the solute smaller.

6.

1 point

What is the density of a cube that has a mass of 50 grams and a volume of 5 mL?

10 g/mL

45 g/mL

55 g/mL

0.1 g/mL

7.

1 point

What is NOT true of a base?

Taste bitter

They are corrosive.

Can be strong or weak

Feel slippery

8.

1 point

Which subatomic particle is NOT in the nucleus?

Electron

Positron

Proton

Neutron

9.

1 point

Why does oil float on top of water?

It's polar.

Its density is less than water.

Its density is greater than water.

It's nonpolar.

10.

1 point

You notice a firetruck's siren sounds higher-pitched as it comes toward you and lower-pitched as it gets further away. Why is this?

Diffraction

Destructive Interference

The Doppler Effect

Refraction

11.

1 point

Which category of elements does Tellurium, Te, belong to?

Nonmetal

Noble Gas

Metalloid

Metal

12.

1 point

The substance there is the most of in a solution is ________.

Water

Solute

Solvent

Molecules

13.

1 point

What is the difference between mass and weight?

Mass is always greater than weight.

Weight can change and mass cannot.

Mass can change and weight cannot.

There is no difference.

14.

1 point

Which of the following is NOT an Alkali Metal?

Na

Mg

K

Li

15.

1 point

How much force is exerted if a mass of 50 kg is accelerated 2 meters per second squared?

25 N

100 N

0.04 N

52 N

16.

1 point

Which electromagnetic wave has the lowest energy and frequence, but the longest wavelength?

Infrared

Radio waves

Visible light

Gamma rays

17.

1 point

Which is NOT a way to make an electromagnet stronger?

Use more coils of wire

Use a plastic cylinder as the core

Use a stronger battery

Use a more conductive core

18.

1 point

What is the difference between speed and velocity?

Velocity also tells direction.

Velocity also tells acceleration.

Velocity also tells time.

There is no difference.

19.

1 point

How many electrons does an atom of beryllium have?

2

9

4

5

20.

1 point

What is the lowest point of a transverse wave called?

crest

rarefaction

compression

trough

21.

1 point

What do ALL binary compounds' names end with?

-ine

-ogen

-on

-ide

22.

1 point

Which type of nuclear process does not produce dangerous nuclear waste?

X-ray radiation

Fusion

Fission

Nuclear decay

23.

1 point

Which letter is NOT on the Periodic Table?

J

Q

Z

X

24.

1 point

What is different between two isotopes of the SAME element?

The number of protons.

The number of neutrons.

The number of electrons.

There is no difference; they're the same element!

25.

1 point

What is the name of KCl?

Potassium Monochloride

Potassium Chloride

Monopotassium Monochloride

Potassium Chlorine

26.

1 point

Which group does Neon, Ne, belong to?

Alkaline-Earth Metals

Noble Gases

Alkali Metals

Halogens

27.

1 point

How many protons does carbon, C, have?

14

6

4

12

28.

1 point

What medium can sound not travel through?

Solid

Liquid

A vacuum

Gas

29.

1 point

Which is NOT one of Newton's Three Laws?

The Law of Conservation of Energy

The Law of Acceleration

Action-Reaction Law

The Law of Inertia

30.

1 point

Which of the following is NOT in the lever family?

Simple Inclined Plane

Wheel and Axle

Pulley

Lever

31.

1 point

Which type of nuclear decay is the weakest?

Alpha

Beta

Neutron emission

Gamma

32.

1 point

What is the average acceleration of a person who speeds up from 15 m/s to 20 m/s in 5 seconds?

3 meters per second squared

1 meter per second squared

4 meters per second squared

2 meters per second squared

33.

1 point

What happens when magnets are moved around a wire?

They make electricity move.

Nothing happens.

They repel one another.

They attract the wire.

34.

1 point

Which of the following has 7 valence electrons?

F

N

Tc

Mn

35.

1 point

When should you NOT use a prefix in a compound's name?

If it's ionic

If it has a noble gas in it

If it has a halogen in it.

If it's covalent

36.

1 point

If a solution can stil dissolve more solute, it is called ________.

Concentrated

Supersaturated

Unsaturated

Saturated

37.

1 point

Which type of nuclear radiation is the most dangerous?

Beta

Gamma

Neutron emission

Alpha

38.

1 point

Which form of energy transfer causes you to burn yourself on the stove?

Conduction

Radiation

Convection

Electrocution

39.

1 point

What word best describes a chocolate chip cookie?

Solution

Homogeneous Mixture

Heterogeneous Mixture

Pure substance

40.

1 point

What is the average velocity of an airplane that travels 1500 miles in 3 hours?

0.002 mph

500 mph

1503 mph

4500 mph