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Physics, 22.09.2019 23:10 ashleychantal99

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1.the flow of electrical current is possible because electrons are (2 points)
a) charged particles that move freely between all atoms; when an atom looses an electron it becomes negatively charged.
b) able to move from one atom to another; the atom that loses an electron becomes positively charged and the atom that gains an electron becomes negatively charged.
c) negatively charged and can move between atoms; the atom that looses an electron becomes negatively charged and the atom that gains an electron becomes positively charged.
d) positively charged particles that when transferred between different atoms create ions that are positively charged.
2.the relationship between charges can be described by saying, (2 points)
a) neutral charges repel.
b) charges do not interact.
c) opposite charges attract.
d) negative charges attract.
3.you are discussing a material that has a strong resistance to the flow of electrons. this is a description of a(n) (2 points)
a) semi-conductor.
b) insulator.
c) conductor.
d) semi-insulator.
4. resistance describes a material's ability to (2 points)
group of answer choices
a) repel a neutral charge and is measured in ohms.
b) move the flow of electrons and is measured in volts.
c) accept the positively charged particles from another material.
d) conduct an electrical charge and is measured in ohms.
5. you need to connect your doorbell to a battery. you should select wire that will (2 points)
group of answer choices
a) resist the flow of electrons.
b) accept the flow of electrons.
c) accept the flow of protons.
d) resist the flow of protons.
6. which statement is correct? (2 points)
group of answer choices
a) when a positively charged atom looses an electron to a positively charged atom, two neutral atoms are created.
b) when a neutral atom looses an electron to a positively charged atom, both atoms become neutral.
c) when a neutral atom looses an electron to another neutral atom, two charged atoms are created.
d) when charged atoms lose electrons they will become positively charged atoms.
7. if you were told an atom was an ion, you would know the atom must have a (2 points)
group of answer choices
a) positive charge.
b) neutral charge.
c)negative charge.
d) charge.
8. semi-conductors are materials that (2 points)
group of answer choices
a) allow neutron flow.
b) have insulator and conductor properties.
c) allow electron flow and resist neutron flow.
d) are good conductors.
9. good conductors must (2 points)
group of answer choices
a) readily accept neutron flow.
b) resist neutron flow.
c) readily accept electron flow.
d) resist electron flow.
10. insulators will (2 points)
group of answer choices
a) inhibit the flow of electrons.
b) allow the flow of neutrons.
c) inhibit the flow of neutrons.
d) allow the flow of electrons.

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