Question

NEED SCIENCE HELP:

Question 1:
which subatomic particle has a negative charge?
all of them
neutron
electron
proton

Question 2:
if an atom has 2 protons, 3 neutrons, and 3 electrons, what is the electrical charge of the atom?
positive
negative
neutral
varies

Question 3:
A neutral atom that gains electrons will have what kind of charge?
positive
negative
neutral
varies

Question 4:
which of the following describes the principle of the conservation of charge?
a charge is created
a charge cannot be transferred
charge cannot be created or destroyed, just transferred
charge can be destroyed

Question 5:
what law states that when there is an interaction between charged objects there is a non-contact force which acts over some distance of seperation?
faraday's law
ohm's law
coulomb's law
interaction law

Question 6:
which of the following describes an insulator?
does not allow electrons to move through it
allows electrons to move through it
is always a solid
is always a gas

Question 7:
what are most conductors made of?
wood
paper
plastic
metal

Question 8:
which of the following describes why lightening rods are put on top of houses?
insulate the house
conduct the lightening away from the house
reduce amount of static discharge
reduce the loudness of thunder

Question 9:
your computer is powered by which of the following?
electrical current
moving protons
overflow of electrons
static electricity

Question 10:
wire is used to attach a battery to a penny and is then used to light a small light bulb. the light bulb is lit due to which of the following?
static electricity
electric current
electron overflow
moving protons

Answer 1

1) electrons
2) negative
3) negative
4) charge cannot be created or destroyed, just transferred
5)
6) does not allow electrons to move through it
7)plastic
8)conduct the lightning away from the house
9) electrical current


I hope this helps! I know about each of those laws for number 5, however the question didn't give a good description of any of the laws.

Best wishes!

Answer 2

Question 1:

which subatomic particle has a negative charge?

Answer:

Electron

Explanation:

There are three subatomic particles

electron, neutron and proton

out of all electron is negatively charged, proton is positively charged while neutron is a neutral particle

Question 2:

if an atom has 2 protons, 3 neutrons, and 3 electrons, what is the electrical charge of the atom?

Answer:

Negative

Explanation:

As we know that

$Q = (N_p - N_e) e$

$N_p = 2$

$N_e = 3$

$Q = (2- 3)e = -e$

so it is negatively charged

Question 3:

A neutral atom that gains electrons will have what kind of charge?

Answer:

Negative

Explanation:

Since electron is a negatively charged particle so on gaining an electron it will get negative charge

Question 4:

which of the following describes the principle of the conservation of charge?

Answer:

Charge cannot be created or destroyed, just transferred

Explanation:

charge can transfer from one atom to other atom but we can not create a charge  or we can not destroy a charge

Question 5:

what law states that when there is an interaction between charged objects there is a non-contact force which acts over some distance of seperation?

Answer:

Coulomb's law

Explanation:

Coulombs law gives the force of attraction or repulsion between two charges which is given as

$F = \frac{kq_1q_2}{r^2}$

Question 6:

which of the following describes an insulator?

Answer:

Does not allow electrons to move through it

Explanation:

in insulators all the charges are bounded and not free to move

Question 7:

what are most conductors made of?

Answer:

Metal

Explanation:

All conductors are source of free electrons in which they can move freely

Question 8:

which of the following describes why lightening rods are put on top of houses?

Answer:

conduct the lightening away from the house

Explanation:

lightening rod gives the path to excess charge to flow towards ground

Question 9:

your computer is powered by which of the following?

Answer:

Electrical current

Explanation:

All electrical device is powered by current source

Question 10:

wire is used to attach a battery to a penny and is then used to light a small light bulb. the light bulb is lit due to which of the following?

Answer:

electric current

Explanation:

electric current gives energy to glow the bulb