Grade 9 circuits & forces

Question 1

difference between series and parallel circuit is series is connected behind one another

Accepted Answer

True

Question 2

Electric currents flow through a closed circuit. True or False

Accepted Answer

True

Question 3

Gravitational forces exerted by the Moon, Sun, and rotation of the Earth cause this phenomena

Accepted Answer

Tides

Question 4

A MATERIAL ALLOWING THE FLOW OF ELECTRIC CURRENTS

Accepted Answer

CONDUCTOR

Question 5

Electromagnetism occurs when electric currents interact with ________.

Accepted Answer

magnetic fields

Question 6

What is gravitational force?

Accepted Answer

the force of attraction between any two objects

Question 7

What determines the strength of the gravitational force?

Accepted Answer

All 3

Question 8

Electric currents can easily pass through

Accepted Answer

conductors

Question 9

What unit do you use to measure gravitational forces?

Accepted Answer

N/kg

Question 10

What is a similarity between electric and magnetic currents?

Accepted Answer

Both forces either attract or repel, Both have two types of charges, They both end in -tic-, The can work either independently or together.

Question 11

Which is true about contact forces?

Accepted Answer

Gravity is a non-contact force that holds the moon in orbit around earth

Question 12

Which are true of contact forces?

Accepted Answer

Contact forces require the physical contact between objects

Question 13

Where are electric generators used?

Accepted Answer

power plants

Question 14

true or false gravitational pull has something to do with forces (by tea)

Accepted Answer

True

Question 15

All electric currents produces a magnetic field.

Accepted Answer

True

Questions 15