Physics Middle School

Using the vocabulary words we have learned so far in this unit, describe what happens when something warms up.

average

infer

kinetic energy

molecule

Answers

Answer 1
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increase. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.
Answer 2
the answer is molecule

Related Questions

Which is not a part of physical fitness?
A.
Muscle Strength
B.
Height
C.
Flexibility
D.
Cardio Fitness
this is GYM class just FYI

Answers

B A C D are all physical fitness your height is the length of your body not fitness
A. C. and D. are all physical fitness, never anywhere in Gym class will that be physical fitness

Object 1 carries a positive charge and is brought close to Object 2. Object 2 is attracted to Object 1.

Which option describes why Object 2 is attracted to Object 1?

A. Object 2 is neutral.
B. Object 2 carries a positive charge.
C. Object 2 has mass.
D. Object 2 carries a negative charge.

Answers

Answer:

D.Object 2 carries a negative charge

The needle in a compass ___________.
A. all of the above
B. keeps pointing in the same direction when you turn the compass points toward Earth’s magnetic north pole
C. is a magnet

Answers

The needle in a compass_____.The answer is A.

( no links and no files) An egg falls off a shelf.
What is the kinetic and potential energy of the egg just before it strikes the ground?

A. potential energy: low
kinetic energy: high

B. potential energy: high
kinetic energy: low

C. potential energy: high
kinetic energy: high

D. potential energy: low
kinetic energy: low

Answers

A. The potential energy is always the highest at the top and the kinetic energy is always the lowest at the top.

Answer:C. potential energy: high

kinetic energy: high

Explanation:

Actually, Sherman, there are more black moths than white ones because...

Answers

Answer:

Actually, Sherman, there are more black moths than white ones because of natural selection. The black moths blend into the environment, while the white moths do not. This means that the predators of the moths will find and eat more white moths than black moths. Then, this leads to more black moths and fewer white moths, since black moths have a better chance of surviving and reproducing.

(no links or files) What types of waves are shown in this image?

a. A: destroyed wave
B: reflected wave

b. A: absorbed wave
B: refracted wave

c. A: destroyed wave
B: refracted wave

d. A: absorbed wave
B: reflected wave

Answers

Answer:

Absorbed and reflected

Explanation:

B is reflected because you can’t see the red arrow which represents a light that bounces off of it and a aired up sword because you can see it win through the object shown in the picture

The waves were ABSORBED and REFLECTED

Please help! No links or spam, I will report.

Answers

Answer:

Need points

Explanation:

bleh

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