Contact Forces
The force that opposes motion.
Friction
The force that attracts or repels magnetic poles.
Magnetism
The name for energy of motion.
What types of energy does a torch convert
Chemical --> Light
Non-renewable
A person pulls a rope 200 N to the left and another pulls a rope 200 N to the right. What is the net force?
0 N
The charge of a particle attracted to a negative particle.
The name given to stored energy
Potential
What energy is unwanted when a ball bounces?
Sound + Heat
The name of a resource that was produced from dying organisms millions of years ago.
Fossil fuel
An object will change motion when the forces are ____________
unbalanced.
Name of the force that attracts charged particles
Electrostatic
The type of energy stored in food.
Chemical Potential
The same type of energy being given to another object is called.
Energy Transfer
The energy source that is produced by moving water
Hydroelectric
A box is pushed 20 N to the right, and the friction exerted is 10 N. What is the net force?
10 N to the right
Gravity is the attractional force of objects with what property?
Matter/Mass
The type of energy that exists when you pull a hair tie.
Elastic Potential
What is the energy efficiency of a radio that produce 300 J of sound energy when 500 J is added
60%
The name of the object that spins to convert mechanical energy to electrical energy.
Turbine/Generator
The name of the force exerted by the chair when someone sits on it.
Normal Force
The strength of a force exerted on an object by a force field is determined by the objects...
Distance from the centre
What is pushed in electricity around a circuit?
Electron
What energy increases and what energy decreases when dropping a tennis ball?
Kinetic increases, Gravitational potential decreases
Draw a simple circuit with a switch, power source and light bulb.
____| l __
| \
| |
|____O__|