Earth And Space, Electricity Flashcards
(20 cards)
How long does it take the earth to orbit the sun
364 1/4
What causes the earth to have Seasons? Give example
Depends on the tilt of the earths axis (235 degrees).
Summer: northern hemisphere is towards the sun.
Winter: northern hemisphere is away from the sun.
What is gravity ? The bigger the mass…
A force that attracts all masses. The bigger the mass the stronger the gravity
What is mass? What is it measured in?
The amount of a substance.
Kg or g
What is weight? What is it measured in?
Weight is a force.
Newtons (N)
How many kg in 100N
10kg =100N
How do u calculate the weight?
Weight= mass x gravitational pull
What is a satellite? What are they used for?
A satellite is an object intentionally placed into orbit in outer space.
Used for communications,TV signals
What is a star?
A body that posses a light that causes it to reflect the light independently
What re the planets in order?
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
What is electricity?
Flow of electric charge. These charges are called electrons
What is the unit for charge
Coulumb (c)
What is the unit for current
Ampere (a)
What is the unit for voltage
Volt (v)
What are these symbols.
Bulb
Switch
A meter
Voltmeter
Fuse
Cell
Battery
Led
Resistor
Diode
In book
Explain what a series circuit looks like:
In book
Explain what a parallel circuit looks like?
Does it matter where the ammeter is in a series circuit?
It doesn’t matter.the current has the same value at all positions.
Does it matter where the ammeter is in a parallel circuit?
It does matter. The current has different values at different places
What does (+ to +) and (- to -)mean voltage?
Cancels out voltage
