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What is friction?
A force that opposes the motion of an object.
What subatomic particle is positively charged?
Protons.
What is energy?
The ability to do work.
What is thermal energy?
Energy associated with temperature of an object.
What unit is used to measure energy and work?
Joules.
What is a collision?
An interaction between objects that contact each other.
What is the charge of an electron?
What is mechanical energy?
Energy that has to do with motion or position.
What is chemical energy?
Energy stored within the bonds between atoms of matter.
Calories are most often used to measure?
The amount of stored energy food.
What do we mean when we say energy is conserved?
energy is neither created nor destroyed.
How does electromagnetic force hold an atom together?
Holds an electron together.
what is light(Radiant) energy?
Energy carried by light waves.
What is nuclear energy?
Energy stored within the nucleus of an atom.
What is the difference between a calorie and Calorie?
calorie= gram 1'C
Calorie= kilogram 1'C
What is gravity?
A force of attraction between objects.
What is the mass of a neutron?
1 atomic mass unit.
What is electrical energy?
Energy carried by charged particles.
What type of energy is carried by wind?
Mechanical energy.
What is the difference between a Joule and a watt?
Joule= energy
watt= power
What is buoyant force?
The force exerted by a fluid on an object immersed in the fluid.
Compare a proton to an electron?
Protons are positive and electrons are negative.
What is sound energy?
Energy carried by sound waves.
Which form of energy is stored in fuel and food?
Chemical energy.
1 watt.