# Chemistry 30 Diploma Prep

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Questions: 14 | Attempts: 308

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This quiz goes over the key terms, mathamatical calculations, and formulas needed for the Alberta Chemistry 30 Diploma.

• 1.

### What is energy?

• A.

Light

• B.

The ability to move

• C.

Force

• D.

Ability to do work and cause change

D. Ability to do work and cause change
Explanation
Energy is the ability to do work and cause change. It is the capacity of a system to perform tasks or apply force to move an object. Energy can exist in various forms such as mechanical, thermal, electrical, chemical, and nuclear. It can be converted from one form to another, but the total amount of energy in a closed system remains constant. The concept of energy is fundamental in understanding the behavior and interactions of physical systems.

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• 2.

### Ability to do work is . . .

• A.

Potential energy

• B.

Energy

• C.

Kinetic Energy

A. Potential energy
Explanation
Potential energy is the correct answer because it refers to the energy possessed by an object due to its position or state. It is the energy that an object has the potential to convert into other forms of energy, such as kinetic energy, when it is in motion. Potential energy is stored energy that can be released and transformed into other forms of energy to do work.

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• 3.

### Somethings in the universe have energy while others do not.

• A.

True

• B.

False

B. False
Explanation
Everything has some energy-- there are just varying degrees of energy held.

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• 4.

### Which is not a common form of energy?

• A.

• B.

Sound

• C.

Mechanical

• D.

Tangible

• E.

Thermal

• F.

Chemical

• G.

Atomic

• H.

Electrical

D. Tangible
Explanation
Tangible is not a common form of energy because it refers to something that can be touched or felt, rather than a type of energy. The other options listed are all common forms of energy: Radiant energy refers to electromagnetic waves such as light, sound energy refers to vibrations that travel through air or other mediums, mechanical energy refers to the energy of motion or position, thermal energy refers to heat energy, chemical energy refers to the energy stored in chemical bonds, atomic energy refers to the energy released from nuclear reactions, and electrical energy refers to the energy associated with the movement of electrons.

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• 5.

### Which options are forms of energy?

• A.

Nuclear and chemical

• B.

Gravitational, rotational, and kinetic

• C.

Potential and kinetic

C. Potential and kinetic
Explanation
Potential and kinetic energy are both forms of energy. Potential energy is the energy that an object possesses due to its position or condition, such as a stretched spring or an object at a certain height above the ground. Kinetic energy, on the other hand, is the energy possessed by an object due to its motion. Both forms of energy are commonly encountered in everyday life and are fundamental concepts in physics.

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• 6.

### Can we measure potential energy directly?

• A.

True

• B.

False

B. False
Explanation
Potential energy cannot be measured directly because it is a form of energy that is stored in an object due to its position or state. It is not a physical quantity that can be measured with a device or instrument. Instead, potential energy is calculated or determined indirectly by considering factors such as the height, mass, and gravitational force acting on an object. Therefore, the given answer "False" is correct.

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• 7.

### What we see as energy is actually energy being _________ from one thing to another.

converted
changed
Explanation
Energy is not created or destroyed but rather transferred or transformed from one form to another. When we observe energy, we are actually witnessing its conversion or change from one thing to another. This process can occur through various mechanisms such as thermal, mechanical, electrical, or chemical conversions. Therefore, the correct answer is "converted, changed."

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• 8.

### First Law of Thermodynamics!

• A.

E lost = E gained Energy cannot be created of destroyed but only converted from one form to another.

• B.

Equilibrium is always reached when a system is left alone. (It changed to its maximum entropy)

• C.

If two systems are in thermal equilibrium with a third system, they must be in thermal equilibrium with each other.

A. E lost = E gained Energy cannot be created of destroyed but only converted from one form to another.
Explanation
The first law of thermodynamics states that energy cannot be created or destroyed, but only converted from one form to another. This means that the amount of energy lost by a system must be equal to the amount of energy gained by another system or converted into a different form of energy. This principle is a fundamental concept in thermodynamics and is applicable to various systems and processes.

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• 9.

### Bonus Question!  What is the Zeroth Law of Thermodynamics?

• A.

If two systems are in thermal equilibrium with a third system, they must be in thermal equilibrium with each other.

• B.

The entropy of any isolated system not in thermal equilibrium almost always increases.

• C.

The entropy of a system approaches a constant value as the temperature approaches zero.

A. If two systems are in thermal equilibrium with a third system, they must be in thermal equilibrium with each other.
Explanation
The Zeroth Law of Thermodynamics states that if two systems are in thermal equilibrium with a third system, then they must be in thermal equilibrium with each other. This means that if two systems have the same temperature as a third system, then they must also have the same temperature as each other. This law is important in understanding how heat flows and how temperature is measured and compared between different systems. It establishes the concept of temperature as a property that can be used to describe the thermal state of a system.

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• 10.

### An open system is one where--

• A.

Matter can be exchanged with the surroundings while energy can't.

• B.

Matter and energy are exchanged with the surroundings.

• C.

Neither matter nor energy can be exchanged with the surroundings.

B. Matter and energy are exchanged with the surroundings.
Explanation
An open system is characterized by the exchange of both matter and energy with the surroundings. In this type of system, not only can energy flow in and out of the system, but matter can also be transferred between the system and its surroundings. This means that both the transfer of energy and the exchange of matter are possible in an open system, allowing for a dynamic interaction with the external environment.

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• 11.

### A system in which matter cannot be exchanged with the surrounding but energy can is called . . .

• A.

An isolated system.

• B.

A closed system.

B. A closed system.
Explanation
In a closed system, matter cannot be exchanged with the surrounding, but energy can. This means that while the system is isolated from matter transfer, it can still exchange energy with its surroundings. This type of system allows for the conservation of energy within its boundaries, as energy can enter or leave the system, but matter cannot.

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• 12.

### The best example of an isolated system is . . .

A.
Explanation
Options a and b are both correct-- but though a calorimeter is considered isolated in Chem 30, the only true isolated system is (possibly) the universe.

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• 13.

### __ = mc(delta)t  m = mass of reactant in grams c = specific heat capacity of reactant in Joules/gram degrees Celcius delta t = change in temperature in degrees Celcius

Q
q
Explanation
The equation __ = mc(delta)t is the formula for calculating the amount of heat energy (Q or q) transferred during a chemical reaction. Q represents the heat energy transferred at constant pressure, while q represents the heat energy transferred at constant volume. The equation takes into account the mass of the reactant (m), the specific heat capacity of the reactant (c), and the change in temperature (delta t) experienced by the reactant.

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• 14.

### In any chemical equation, bonds in the reactant need to be broken and this _______ energy and then new bonds are formed which ______ energy.

• A.

Releases, requires

• B.

Requires, doesn't change

• C.

Requires, releases

C. Requires, releases
Explanation
In any chemical equation, bonds in the reactant need to be broken, which requires energy. Then, new bonds are formed, which releases energy.

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• Mar 21, 2023
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• Jun 13, 2012
Quiz Created by
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