1
Q
what is work done equal to?
A
energy transferred
2
Q
what is 1Nm equal to?
A
one Joule
3
Q
what are the two types of work done?
A
mechanically
electrically
4
Q
what is mechanical work done?
A
done over a distance
5
Q
what is electrical work done?
A
done by the flow of charged particles
6
Q
what is an object in equillibrium?
A
the forces acting on the object are balanced
7
Q
how do you get an object to change motion/ accelerate?
A
energy is required to do work on the object- force applied has to be larger than the weight on the object
8
Q
what is the formula for mechanical work done?
A
work done = force x distance (in the direction of the force applied)
physics
flashcards
Decks in class (47)
# Cards
-
sound waves20
-
longitudinal and transverse waves10
-
wave properties14
-
EM spectrum23
-
distance and velocity time graphs10
-
forces9
-
skydiver in free fall5
-
hookes law9
-
momentum27
-
reflection and refraction28
-
snells law24
-
total internal reflection6
-
current5
-
voltage7
-
resistance9
-
current in series and parallel6
-
voltage in series and parallel4
-
combined resistance2
-
IR graphs4
-
electrical components11
-
electrical power and fuses10
-
electrical safety13
-
AC and DC7
-
conductors1
-
how insulating materials can be charged by friction0
-
ideal gases32
-
radioactivity97
-
energy transfers and stores20
-
conservation of energy6
-
thermal conduction11
-
convection4
-
thermal radiation5
-
reducing energy loss14
-
work done8
-
gravitational potential energy8
-
kinetic energy5
-
power3
-
energy resources10
-
comparing different energy sources16
-
density7
-
density practicals2
-
pressure between solids5
-
pressure in liquids7
-
solids liquids and gases10
-
changes of state2
-
practical-changes of state10
-
specific heat capacity6
