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Worksheetsphysical science
Total questions: 24
Worksheet time: 17mins
Energy
the ability to do work
energy in motion
chemical energy
two bonds together
nuclear energy
the potential energy stored in the nucleus of an atom
stored energy
mechanical energy
the sum of the kinetic and potential energy of system
car energy
sound energy
the energy released by the vibration of objects
something that make sound
thermal energy
energy possessed by an object due to the movement of its particles
the sun
electrical energy
the energy that charged particles store inside an electric field
energy
radiant energy
energy transmitted through electromagnetic waves
sound going through
potential energy
(a)
kinetic energy
(a)
law of conservation of energy
energy can neither be created nor be destroyed
3rd law
work
is the production of force and distance
doing work
power
(a)
temperature
a measure of the average kinetic energy of the particle in a system
how it feels outside
heat
the transfer of energy from one object to another due to a difference in temperature
how hot it is
conduction
the process by which heat energy is transmitted through collisions between neighboring atoms or molecule
effort distance
convention
a choice of the physical significance of signs (plus or minus) for a set of quantities, in a case where the choice of sign is arbitrary.
the displacement
radiation
the emission or transmission of energy
when something moves
A 1000 kg car is traveling at 20 m/s. What is the car's kinetic energy?
(a)
A baseball with a mass of 0.145 kg is thrown at a speed of 40 m/s. What is the kinetic energy of the baseball?
(a)
A 50 kg skateboarder is rolling down a hill at a speed of 8 m/s. What is the skateboarder's kinetic energy?
(a)
A 10 kg rock is sitting on a cliff 20 meters above the ground. What is its potential energy?
(a)
A roller coaster car with a mass of 500 kg is at the top of a 60 meter hill. What is its potential energy?
(a)
A 0.5 kg bird is perched on a branch 15 meters above the ground. What is its potential energy?
(a)
