Phase Change Final Study Guide

When you transfer energy into a substance, what happens to the temperature?

• It stays the same
• It decreases
• It becomes negative
• It increases

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When you transfer energy into a substance, what happens to the molecules’ kinetic energy?

• It decreases
• It increases
• It stays the same
• It disappears

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Is burning a phase change?

• Yes
• Trick question none of these are right
• It is a chemical reaction

Tags

NGSS.MS-PS1-5

When energy is transferred to or from a substance, it can change the molecules’ freedom of movement.

• True
• Neither true nor false
• False
• Not enough information

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What happens to the kinetic energy of a substance when it transfers that energy to another substance?

• It is converted to potential energy
• It stays the same
• It loses kinetic energy
• It increases its kinetic energy

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What is kinetic energy?

• a pull between two molecules that is always the same for a substance
• the way molecules in a substance move around relative to each other
• a group of atoms joined together in a particular way
• the energy that an object has because it is moving

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

Scenario 1: A student wants to test how different amounts of water affect plant growth. Is this the Independent or Dependent variable? A student adds different amounts of water to each plant to see how it grows.

• Independent Variable
• Dependent Variable

Tags

NGSS.MS-ETS1-1

Scenario 2: A researcher investigates if the temperature of water affects how fast sugar dissolves. Is this the Independent or Dependent variable? A researcher records how quickly the sugar dissolves.

• Independent Variable
• Dependent Variable

Scenario 3: A teacher wants to know if study time affects students' test scores. Is this the Independent or Dependent variable? The teacher has students study for different amounts of time.

• Independent Variable
• Dependent Variable

Scenario 4: An experiment is conducted to determine whether the type of exercise affects heart rate. Is this the Independent or Dependent variable? The researcher measures the heart rate of each participant.

• Independent Variable
• Dependent Variable

Tags

NGSS.MS-PS2-2