Physics: WWR Flashcards
How does one measure the volume of a flask 1
Fill it with water
Pour water into measuring cylinder
Why are flames in space spherical? 2
Meager oxygen flow
No gravity causes air to move outwards not upwards
What happens when light travels through a denser medium 1
Bends towards normal
Why does the orbital time for a planet change as it is further from the sun? 1
The gravitational force is weaker, thus the orbit takes a longer time.
Volts and amps in a parallel circuit 2
Some of the current in each path equals the amount of current flowing from the source
Volts are all the same
Volts and amps in a series circuit 2
Amps are the same anywhere
Voltage drops as it goes through different components.
Volts definition 1
The SI unit of electromotive force
How does the thickness of a wire affect resistance 2
Longer = More
Larger Cross Section = Less
Why is slate used in roof tiling 3
Heat Proof
Smooth surface run off
Non porous
Why is copper used for wires 2
Bendable
Conducts electricity
Why are wires coated in plastic 2
As insulation
Prevents short-circuiting between wires
