1st Semester Test (part 20) Question Preview (ID: 58086)
Cells And Life, Body Systems, Energy And Matter.
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What happens to particles when heat is added to a substance?
a) it freezes
b) it becomes stretchy
c) The average kinetic energy of the particles increases as the temperature increases.
d) It turns to water vapor and evaporates.
What are the different types of heat transfer?
a) radiation, conduction, convection, condensation
b) boiling, evaporation, gas, solid
c) radiation, evaporation, convection, gas
d) solid, water, gas, liquid
What is specific heat?
a) how to tell if something is hot or cold
b) what the temperature reads on a thermometer
c) the amount of thermal energy it takes to increase temperature.
d) how hot the oven is set at and how it cooks the food inside
Compare the specific heat of water and metals
a) water has a low specific heat compared to metals that have a high specific heat
b) water has a low specific heat as well as metals
c) water has a high specific heat where metals have a low specific heat
d) water has a high specific heat as well as metals
Explain the particle arrangement and motion for each state of matter:
a) solid: tightly together vibration movement, liquid: freely in a confined space, gas: freely very spaced out random motion
b) solid: tightly and freely, liquid: freely all over, gas: freely in confined space
c) solid: in random motion, liquid: vibration, gas: random motion
d) solid: tightly together in random motion, liquid, vibration over each other, gas: freely in confined space
What type of heat transfer is occurring when you hold a marshmallow over a fire?
a) by touching the fire
b) heat waves through radiation
c) particle movement through convection
d) touch through the marshmallow toughing the stick
Define kinetic energy
a) energy from toasting a piece of toast
b) stored
c) motion
d) the study of energy
What is a thermal conductor? Give some examples of a thermal conductor.
a) a material that allows energy to flow easily: a pot
b) a material that allows energy to flow easily: a pot's handle
c) a material that does not allow energy to flow easily: a pot's handle
d) a material that does not allow energy to flow easily: a pot
What is a thermal insulator? Give examples of a thermal insulator.
a) a material that does not allow energy to flow easily: a pot's handle
b) a material that allows energy to flow easily: a pot's handle
c) a material that does not allow energy to flow easily: a pot's handle
d) a material that allows energy to flow easily: a pot
Explain how heat transfer by conduction.
a) heat transfers through heat waves
b) heat transfers through touch
c) heat transfers like magnets
d) heat transfers through the movement of particles
Define potential energy
a) transferred energy
b) energy in motion
c) produced energy
d) stored energy
In order for heat to transfer between 2 objects they must be at different______________
a) levels of convection
b) levels of thickness
c) temperatures
d) capacities
What is transferred with a wave?
a) air
b) water
c) energy
d) medium
What does the energy in a wave do when amplitude increases?
a) It causes the wave to fall
b) the energy of the wave decreases
c) the energy of the wave also increases
d) the wave becomes smaller
What color do we see when all light is reflected off an object?
a) white
b) purple
c) red
d) black
How do light waves travel? Do they need matter to travel on?
a) by way of sight
b) they travel through soundwaves
c) they travel through space because they do not need a medium to travel on
d) when they travel through space, they have difficulty due to the matter that is in space
What is refraction and what causes it to occur?
a) refraction is when you have a bigger number on top and a smaller number on bottom then you flip it to make refreaction
b) refraction is the bending of light from being passed from one medium to another at different angles
c) refraction is the continued trajectory of light after passing through a glass window.
d) refraction is looking at something through a mirror
What is reflection and how does it occur?
a) reflection is when light hits something smooth and bounces off at the same angle it traveled from.
b) reflection is when you hit a ball back to where it came from
c) reflection is the bright light you see when you walk outside for the first time of a day
d) reflection is when light hits something ridged and bends in different angles
What colors will absorb more light?
a) light
b) dark
c)
d)
When color do we see when all colors of light are present?
a) a rainbow
b) red
c) black
d) white
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