Unit Part

Unit 1 Part 2 Test Review

Test is Tuesday/Wednesday!!

Multiple Choice

Is the matter within your desk continuous, or is it made up of particles?

• Continuous

• Particles

• Neither

Multiple Choice

What ARE the particles that make up all objects?

• Worms

• Stuff

• Matter

• Atoms

Open Ended

Why is it so hard to study atoms?

Atoms are made up of 3 subatomic particles

• Protons

• Electrons

• Neutrons

Multiple Choice

What is the charge of protons?

• Positive

• Negative

• Neutral

• No charge

Multiple Choice

What is the charge of neutrons?

• Positive

• Negative

• No charge

• Half positive, half negative

Multiple Choice

What gives an atom of carbon its identity as that specific element?

• Number of electrons

• Number of neutrons

• Number of protons

In order for something to be matter, it must have...

• Volume

• Mass

Multiple Choice

Which of the following does NOT have mass?

• Protons

• Atoms

• Neutrons

• All matter has mass.

Atoms contain two types of charge

• Positive

• Negative

Multiple Choice

How can an ATOM be neutral?

• It is only made up of neutrons.

• It has more electrons than protons.

• It has more protons than electrons.

• It has an equal number of protons and electrons.

Multiple Choice

How can an OBJECT be neutral?

• It has more positive atoms than negative atoms.

• It has an equal number of protons and electrons overall.

• It has more negative charge than positive charge.

• It has no protons or electrons in its atoms.

Neutral objects can BECOME charged because of charge transfer

Multiple Choice

Which particle inside an atom can transfer to and from atoms?

• Protons

• Neutrons

• Electrons

• No particles can transfer.

Multiple Choice

How can an OBJECT become positively charged?

• Protons transfer to it.

• Protons leave it.

• Electrons transfer to it.

• Electrons leave it.

Multiple Choice

How can an OBJECT become negatively charged?

• Protons transfer to it.

• Protons leave it.

• Electrons transfer to it.

• Electrons leave it.

Electric force between objects CAUSES an interaction (what we can observe)

Two objects can interact by:

• Attraction

• Repulsion

• Neither attraction nor repulsion = No interaction

Multiple Choice

How do two NEUTRAL objects interact when they are brought close together without touching?

• Attraction

• Repulsion

• No interaction

Multiple Choice

How do neutral objects interact with charged objects when they are brought close together?

• Attraction

• Repulsion

• No interaction

Neutral objects can attract BOTH positively and negatively charged objects

• NO charge transfer

Multiple Choice

What do the electrons within a neutral object do when a negatively charged object is brought close by?

• The electrons repel the negatively charged object and move to the opposite side of each atom.

• The electrons in each atom attract and move closer to the side of the negatively charged object.

• The electrons do not move.

Multiple Choice

What do the electrons within a neutral object do when a positively charged object is brought close by?

• The electrons repel the positively charged object and move to the opposite side of each atom.

• The electrons in each atom attract and move closer to the positively charged object.

• The electrons do not move.

Why some clothes stick together when they come out of the dryer

• Clothes are neutral going in to the dryer

• Clothes come out oppositely charged

• Opposite charges attract, so the clothes stick together

Open Ended

What exactly happens when two NEUTRAL objects are RUBBED together?