Matter
What state of matter fills up a balloon when a child blows it up?
Gas
What is a force?
A push or pull
What kind of energy is produced by the vibration of molecules or atoms?
Thermal energy (or Kinetic energy)
Which law states that energy cannot be created or destroyed, but energy can be converted from one form to another form?
The law of conservation of energy
What energy transformation occurs in a computer?
Electrical energy into light energy
Which law states that matter cannot be created or destroyed, but matter can change forms?
The law of conservation of matter
How does the force of gravity change for an astronaut as her distance from Earth doubles?
The force of gravity decreases by a factor of 4
What is the kind of energy that is being transferred to rocks in a stream that causes the rocks to move?
Kinetic energy
What is the kinetic energy of an asteroid with mass 413 kg falling to Earth at a velocity of 54 m/s.
602,000 J
What energy transformation occurs in a space heater?
Electrical energy into heat energy
What are the four types of matter?
Solid, liquid, gas, and plasma
How does the force of gravity compare between you (60 kg) and your friend (120 kg)?
Your friend experiences a force of gravity twice as much
What is the type of energy that is greatest in a rock resting at the top of a cliff?
Gravitational potential energy
What is the gravitational potential energy of a television on Earth with mass 7.5 kg at a height of 0.4 m?
29.4 J
What energy transformation occurs in a flashlight?
Chemical energy into light energy
Is heat absorbed or released when a solid becomes a liquid?
Heat is absorbed
What type of electricity occurs when a balloon becomes charged by rubbing it on hair?
Static electricity
What is the type of energy associated with moving electrons?
Electrical energy
Is heat absorbed or released as a gas becomes a liquid?
Heat is released
What direction does the electric field point at a position directly west of a positive charge?
West
What type of energy is stored when you stretch a rubber band?
Elastic potential energy