Quiz about Final Exam Practice Physical Science SP25

Question 1

Where are the Alkali Metals in the diagram below?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 2

What is happening to electrons in a Covalent bond?

Accepted Answer

Electrons are shared between two nonmetals

Answer

Electrons are shared between two metals

Answer

Electrons are transferred from metals to nonmetals

Answer

Electrons are transferred between two nonmetals

Question 3

The element Ar and Ne are nonreactive because

Accepted Answer

Their outermost electron level is full

Answer

They tend to give up their valence electrons

Answer

They are very abundant on earth

Answer

They are not stable elements

Question 4

What kind of reaction is this?

Accepted Answer

Synthesis

Answer

Decomposition

Answer

Single Replacement

Answer

Double Replacement

Question 5

True or False: Matter cannot be created or destroyed, only rearranged.

Accepted Answer

True

Answer

False

Question 6

What color do acids turn litmus paper?

Accepted Answer

Red

Answer

Blue

Answer

Yellow

Answer

Purple

Question 7

A chemical with a pH of 3 splashes into someone's eyes and causes serious consequences. What classification is this chemical?

Accepted Answer

Acid

Answer

Solutions

Answer

Base

Answer

Problems

Question 8

Which of the following choices summarizes Newton's Laws of Motion in order? (1st law->2nd law->3rd law)

Accepted Answer

1st: inertia, 2nd: force= mass x acceleration, 3rd: action/reaction

Answer

1st: inertia, 2nd: action/reaction, 3rd: Momentum

Answer

1st: force= mass x acceleration, 2nd: Inertia, 3rd: action/reaction

Answer

1st: inertia, 2nd: action/reaction, 3rd: force= mass x acceleration

Question 9

According to the 2nd Law of thermodynamics, thermal energy moves from the burner to the water because heat moves from ________________________________.

Accepted Answer

Hot to not hot areas

Answer

Cold to hot areas

Answer

Hot to warm areas

Answer

Warm to hot areas

Question 10

Which law of motion explains why you feel a jolt backward when a car suddenly accelerates?

Accepted Answer

Newton's 1st Law

Answer

Newton's 2nd Law

Answer

Newton's 3rd Law

Answer

Law of Thermodynamics

Question 11

Which law states that for every action, there is an equal and opposite reaction?

Accepted Answer

Newton's 3rd Law

Answer

Newton's 1st Law

Answer

Newton's 2nd Law

Answer

Law of Thermodynamics

Question 12

If a person runs 6 km in 0.5 hours, what is their average speed?

Accepted Answer

12 km/hr

Answer

3 km/hr

Answer

6 km/hr

Answer

0 km/hr

Question 13

If the mass of an object is doubled but the force applied remains the same, what happens to the acceleration?

Accepted Answer

It halves

Answer

It doubles

Answer

It stays the same

Answer

It becomes zero

Question 14

Which of the following best describes velocity?

Accepted Answer

Speed in a given direction

Answer

Distance traveled per unit time

Answer

Rate of change of acceleration

Answer

Force per unit mass

Question 15

Which law explains why you need to push harder to accelerate a heavier object?

Accepted Answer

Newton's 2nd Law

Answer

Newton's 1st Law

Answer

Newton's 3rd Law

Answer

Law of Thermodynamics

Question 16

If a person runs at a constant velocity, what does this mean about their speed and direction?

Accepted Answer

Both are constant

Answer

Both are changing

Answer

Speed is constant, direction is changing

Answer

Speed is changing, direction is constant

Question 17

What is the main concept behind Newton's 1st Law?

Accepted Answer

Inertia

Answer

Acceleration

Answer

Force

Answer

Energy

Question 18

Which of the following is a correct statement of Newton's 2nd Law?

Accepted Answer

Force equals mass times acceleration

Answer

For every action, there is an equal and opposite reaction

Answer

Objects at rest stay at rest

Answer

Energy cannot be created or destroyed

Question 19

What is the main idea of the 2nd Law of Thermodynamics as applied to heat transfer?

Accepted Answer

Heat moves from hot to cold

Answer

Heat moves from cold to hot

Answer

Heat does not move

Answer

Heat moves randomly

Question 20

Which of the following is NOT a unit of velocity?

Accepted Answer

N

Answer

m/s

Answer

km/hr

Answer

cm/s

Question 21

What should be done to this inclined plane so that you can use less effort force when pushing the wheelbarrow up it?

Accepted Answer

Make the length longer, allowing for more effort distance.

Answer

Make the length shorter so you don't have to go as far.

Answer

Let someone stronger, like Mrs. Loudermilk, apply the effort force.

Answer

Make the ramp taller, this gives you more resistance.

Answer

Reduce friction by using more wheels.

Question 22

What energy form results from the internal motion of molecules?

Accepted Answer

Thermal

Answer

Mechanical

Answer

Potential

Answer

Chemical

Answer

Electrical

Question 23

What energy form is gasoline stored in a tank?

Accepted Answer

Chemical

Answer

Thermal

Answer

Mechanical

Answer

Potential

Answer

Electrical

Question 24

Which wave behavior explains why light bends as it travels from air into water, or from a low-density medium into a high-density medium?

Accepted Answer

Refraction

Answer

Diffraction

Answer

Reflection

Answer

Interference

Question 25

Which type of radiation, from an external source, will penetrate deepest into the human body?

Accepted Answer

Gamma

Answer

Alpha

Answer

Beta

Answer

X-Rays

Question 26

If an atom gains an electron, what charge will it have?

Accepted Answer

negative

Answer

positive

Answer

neutral

Question 27

How many total electrons can the 2nd shell or energy level hold?

Accepted Answer

8

Answer

1

Answer

2

Answer

18

Question 28

Elements commonly form compounds so that each atom is stable with ___________ electrons in its last energy level or shell.

Accepted Answer

8

Answer

1

Answer

2

Answer

6

Question 29

What determines reactivity?

Accepted Answer

Valence electrons

Answer

Protons

Answer

Electrons

Answer

Neutrons

Question 30

What is Half-life?

Accepted Answer

The amount of time it takes for half the nuclei in a sample of the isotope to decay

Answer

The amount of time it takes for some of the nuclei in a sample of the isotope to decay

Answer

The amount of time it takes for half the electrons in a sample of the isotope to decay

Answer

the amount of time it takes to double the nuclei in a sample of the isotope to decay

Question 31

What type of decay is shown here

²³⁸₉₂U ---> ²³⁴₉₀Th + ⁴₂He.

Accepted Answer

alpha

Answer

beta

Answer

gamma

Question 32

When a nucleus undergoes nuclear decay by gamma rays, the atomic number of the element....

Accepted Answer

remains the same

Answer

decreases by one.

Answer

increases by one.

Answer

increases by two.

Question 33

The type of radioactive particle that can be stopped by a sheet of paper is the ____.

Accepted Answer

alpha particle

Answer

beta particle

Answer

gamma ray

Answer

theta particle

Question 34

This is an example of a...

Accepted Answer

Fission reaction

Answer

Fusion reaction

Answer

Decomposition reaction

Answer

Decay

Question 35

The liquid in which the material is dissolved

Accepted Answer

solvent

Answer

solute

Answer

solution

Answer

solubility

Question 36

The solid that is being dissolved

Accepted Answer

solute

Answer

solvent

Answer

solution

Answer

solubility

Question 37

In an inclined plane, if the height is 5 meters and the length is 20 meters, what is the mechanical advantage?

Accepted Answer

4

Answer

2

Answer

6

Answer

8

Question 38

What is the formula to calculate mechanical advantage for an inclined plane?

Accepted Answer

MA = length of incline/height of incline

Answer

MA = length of incline + height of incline

Answer

MA = height of incline/length of incline

Answer

MA = length of incline * height of incline

Question 39

In an inclined plane, if the input force is 100 N and the output force is 500 N, what is the mechanical advantage?

Accepted Answer

5

Answer

20

Answer

10

Answer

2

Question 40

if you push a cart with a force of 60 N for 2 m... how much work have you done

Accepted Answer

120 J

Answer

30 J

Answer

120 N

Answer

30 N

Question 41

How much heat does an aluminum block absorb if 10.00 grams are heated from 25.0^oC to 50.0^oC? the specific heat of aluminum is 0.9025 J/g^oC

Accepted Answer

225

Answer

450

Answer

-450

Answer

-225

Question 42

How many Joules of energy are required to change 10 gram of water from 20 C to 90 C? C= 4.18. Q=mcT

Accepted Answer

2926 J

Answer

1476 J

Answer

210,050 J

Answer

1,404,500 J

Question 43

A roller coasters accelerates from an initial speed of 6.0 m/s to a final speed of 70 m/s over 4 seconds. What's the acceleration?

Accepted Answer

16 m/s2

Answer

24 m/s2

Answer

18 m/s2

Answer

16 m/s

Question 44

Velocity is speed with __________________________.

Accepted Answer

direction

Answer

a unicycle helmet

Answer

fight

Question 45

An old lady rolls down a hill at 3 meters/second. The hill is 36 meters long. How many seconds does it take the old lady to reach the bottom of the hill?

Accepted Answer

12 seconds

Answer

39 seconds

Answer

15 seconds

Answer

33 seconds

Question 46

How many protons are in Sodium?

Accepted Answer

11

Answer

22

Answer

12

Answer

33

Question 47

How many electrons are in Aluminium?

Accepted Answer

13

Answer

40

Answer

27

Answer

14

Question 48

How many neutrons are in Magnesium?

Accepted Answer

12

Answer

36

Answer

24

Answer

6

Final Exam Practice Physical Science SP25

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