HC Unit 6 Study Guide

The concept of energy is defined as:

• The ability to do work or produce change

• The measure of mass in an object

• The speed at which an object moves

• The amount of space an object occupies

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-3

As a ball rolls down a hill, ​ (a)   energy decreases, ​ (b)   energy increases, and ​ (c)   energy remains the same.

• potential
• kinetic
• total
• nuclear
• chemical

Tags

NGSS.HS-PS3-2

What is meant by the term state function?

• A property that changes when a different path is taken.

• A property that is independent of the path taken.

• A function that describes the rate of a chemical reaction.

• A function that is used to calculate the work done by a system.

Which are examples of state functions?

• Kinetic energy
• Internal Energy

• Work done
• Enthalpy

• Heat transfer

Temperature measures:

• The speed of sound

• The amount of energy a substance releases into its surroundings

• The average kinetic energy of particles

• The density of a substance

Tags

NGSS.HS-PS3-4

Exothermic reactions ​ (a)   energy, while endothermic reactions ​ (b)   energy.

• release
• absorb
• create
• retain

Tags

NGSS.HS-PS1-4

System refers to ​ (a)   , while surroundings are ​ (b)   .

• the part of the universe being studied
• everything else
• the entire universe
• a small part of the universe

​ (a)   is defined as the energy transferred when a force of one newton acts over one meter.

​ (b)   is defined as the energy needed to raise the temperature of one gram of ​ (c)   by one degree ​ (d)   .

• Joule
• Calorie
• Celsius
• Fahrenheit
• water
• carbon
• oxygen

There are 4.184 joules in 1 calorie.

What would you enter in a calculator to convert 459J to calories?

(do not include an = sign)

Mathematical Equivalence

ON

What would you put into a calculator to convert 55.31 kJ into J?

(do not include an = sign)

Mathematical Equivalence

OFF