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56 terms

5th Grade Science - Potential & Kinetic Energy

STUDY
PLAY
potential energy
__ is energy stored in the position or structure of an object.
elastic potential energy
__ is energy stored by something that can stretch or compress.
gravitational potential energy
__ is energy due to position above Earth's surface.
chemical potential energy
___ is energy that holds atoms together in a molecule.
child on top of a slide
___ is an example of gravitational potential energy.
an unlit match
___ is an example of chemical potential energy.
a rubber band or a spring
____ is an example of elastic potential energy.
chemical, elastic, nuclear, magnetic
___ are different forms of potential energy.
kinetic energy
____ is the energy of a moving object.
heat, electricity, light, sound
___ are different types of kinetic energy.
heat
Electricity does work in an oven by moving particles around and changing into ____.
work
____ is the amount of energy used to perform a task / or the measurement of the energy used to perform a task.
law of conservation
___ states that energy cannot be created or destroyed.
forms
Energy can only change _____.
Energy
___ is the ability to do work or to change an object.
if you lift a ball
___ you give it gravitational potential energy.
if you drop the ball
__ you give it kinetic energy.
changes back and forth from potential to kinetic energy
when a roller coaster goes up a hill and then goes down the hill and up and down, it ______.
joules
___ is the same thing as Newton . meters.
units of work
___ are joules.
force
work is equal to the ____ used multiplied by the distance applied.
newton meters
The units of work are ____, which is also joules.
velocity and mass
The amount of kinetic energy an object has depends on the object's ____.
more
The ___ velocity and mass there is, the more kinetic energy.
increases
Velocity and mass ___ an object's kinetic energy.
created or destroyed
Energy cannot be ____.
dropping
___ a ball is an example of kinetic energy.
move
In kinetic energy, an object has to ____.
gravity and friction
___ are forces that are acting on the roller coaster cars.
distance
work = force x ____.
electrical energy
____ can be changed or transformed into light, heat, or mechanical energy.
movement of charged particles
electrical energy is energy that comes from the _____.
mechanical energy
moving objects have ____.
kinetic and potential energy
mechanical energy is the sum of _____.
warmer
_____ substances have more thermal energy than cooler substances.
lit candle
___ has more thermal energy than ice.
cook, light rooms, use computers and air conditions
people depend on electrical energy to _____.
electrical devices
___ transform electrical energy into other kinds of energy such as thermal, light or mechanical.
power plants
most electrical energy comes from ____.
wires and cables
Electrical energy is sent thru _____ to homes and businesses, and then electrical devices transform this electrical energy to light
light
___ is vibrating electrical and mechanical energy.
thermal energy
_____ is the energy due to the motion of particles in matter.
electrical current
___ is the flow of electricity through a conductor.
circuit
___ is an unbroken path of conductors through which electric current passes.
shadow
___ is a dark area that is created when an opaque or translucent object blocks the passage of light.
solar radiation
____ is energy from the Sun that is used by plants to make food.
distance and angle
The size of a shadow is affected by the ____ between the light source and the object.
light energy
____ travels as a wave, but is also a particle.
amps
Electrical current is measured in units of ____.
switch
__ is a device that can open or close a path.
resistor
a ___ transforms electrical energy to light or heat as it slows electrons in an electrical circuit.
light bulb
a ___ is a resistor.
battery
___ is a voltage source.
electrons
a voltage source helps move ___ along the path in a circuit.
nuclear energy
___ is potential energy stored in the links between protons and neutrons in an atom.
sun
the nuclear energy from the ____ becomes forms of energy such as light that provides energy for Earth.