Science kinetic Energy
Terms in this set (19)
The energy of motion
the increase in volume due to increased kinetic energy of particles
the decrease of volume due to decreased kinetic energy of particles
the decrease of gas volume as a result of applied force
What are expansion joints and why are they used?
expansion joints are used between the sections of a bridge. When the surface is hot they get longer and the expansion joint pushes together. when it gets cold they get smaller and the expansion joint pulls apart.
What causes the cap to pop off a bottle of orange juice?
How does a thermometer work?
A thermometer works by measuring the contraction or expansion (particle movement) of the substance it contains.
What is the relationship between kinetic energy and speed?
kinetic energy grows with the square of its speed
what is the relationship between kinetic energy and temperature
temperature is the average kinetic energy of the particles of matter. the hotter something is the more kinetic energy it has.
what is the relationship between temperature and the energy of particles in gases?
temperature heats up the particles they have more kinetic energy and move and bounce into each other and spread out.
What is the relationship between temperature and the energy of particles in liquids?
more temperature = more energy, more motion, expands
What is the relationship between temperature and energy of particles in solids?
Particles only vibrate, more temperature= more vibration = expansion
what happens to a substance when the kinetic energy of its particles increases?
What happens to a substance when the kinetic energy of its particles decreases?
What variables determine the amount of energy transfer needed to change the temperature of matter?
nature of the matter, size, and environment of the matter
how is thermal energy transferred?
From hot to cold. (always)
If particles in a substance warm what has happened?
they have more kinetic energy
If particles in a substance cool what has happened?
They have cooled
When two objects interact one exerts a force on the other and what happens?
energy is transferred.