ENERGY: Transformations & Heat

Interactive Video
•
Science
•
6th - 8th Grade
•
Medium
+5
Standards-aligned

Clarissa Borge Gamwell
Used 9+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
When the hot molecules and the cold molecules mix together the energy of the cold molecules
increases because they start to move more
decreases because they stop moving
stays the same
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
NGSS.MS-PS3-5
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What happens to the temperature of both substances after they mixed?
The temperature stayed the same
The temperature reached equilibrium
The temperature of both got colder
The temperature only increased.
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
NGSS.MS-PS3-5
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The temperature of a substance increases as___.
the substance expands
the substance's volume increases
the average kinetic energy of its particles increases
the substance's mass increases
Answer explanation
The temperature of a substance increases as the average kinetic energy of its particles increases. Higher kinetic energy means particles move faster, resulting in a higher temperature.
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The movement of thermal energy from a warmer object to a cooler object is called:
heat
motion
temperature
momentum
Answer explanation
The movement of thermal energy from a warmer object to a cooler object is defined as heat. This process occurs naturally, as energy flows from higher to lower temperatures, making 'heat' the correct answer.
Tags
NGSS.MS-PS3-3
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Molecules are closest together in a
solid
liquid
gas
Answer explanation
Molecules are closest together in a solid due to strong intermolecular forces, which keep them tightly packed. In liquids, molecules are still close but can move more freely, while in gases, they are far apart and move independently.
Tags
NGSS.MS-PS1-4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What term describes a liquid changing to a solid?
deposition
freezing
melting
evaporation
Answer explanation
The term that describes a liquid changing to a solid is 'freezing'. During freezing, the molecules in the liquid lose energy and arrange themselves into a solid structure.
Tags
NGSS.MS-PS1-4
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is the process called when you add more energy to a substance?
melting
freezing
evaporation
condensation
Answer explanation
The process of adding more energy to a substance typically leads to evaporation, where a liquid turns into a gas. This occurs when molecules gain enough energy to overcome intermolecular forces.
Tags
NGSS.MS-PS1-4
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