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WorksheetsInterim Review 1
Total questions: 141
Worksheet time: 5hrs 38mins
It is the high pressure part of the wave where the particles are close together. It is part A on this picture.
Compression
Amplituide
Rarefaction
Wavelength
Which type of wave moves parallel to the direction of the wave?
transverse
longitudinal
surface
electromagnetic
High pitched waves would have wavelengths that are...
at a rarefaction
far apart
close together
at the trough
ex. police car siren sounding lower pitch after the car passes
Compared to wave A, which wave has the same wavelength but a smaller amplitude?
only B
only C
only D
both B & C
If the wavelength of a wave increased, what would happen to the frequency?
decrease
increase
stay the same
What do you call the the bending of waves caused by a change in their speed as they pass from one medium to another. The bending of light as it moves from one material to another is ---
refraction
reflection
translucent
absorbed
how does diffraction work
it goes through water and air
is a beam of light stopping at a wall
it bounces off of light
is the bending of light as it passes around the edge of an object
What is the main difference between refraction and diffraction?
Refraction is a phenomenon that affects light; diffraction is a phenomenon that affects sound.
Refraction involves the bending of light; diffraction involves the bending and spreading of light, usually around an obstacle.
Refraction usually happens in the atmosphere; diffraction usually happens closer to the earth's surface.
Refraction involves changes to the density of light; diffraction involves changes to the speed of light.
When light bounces off a mirror it is ________.
absorbed
reflected
corrected
refracted
What is the best explanation for Mickey seeing himself in the mirror?
refraction
absorbed
reflection
flipped
When light hits an area and bounces back it is called:
echo
refraction
reflection
absorbing
Refraction is when light__________.
Is bounced by an object or material.
Changes speed as it travels in different materials which causes bending.
When light speeds up to over 300,000 km/s
when a wave is bent by traveling from one medium to another
reflection
refraction
absorption
propagation
Sonar and echolocation use ----- to detect objects under water.
Refraction
Reflection
Steam is an example of _____________energy.
light
thermal
sound
electrical
Potential energy depends on ____________ & ______________.
mass, speed
mass, position
speed, position
mass, weight
Kinetic energy depends on _____________ & _____________.
mass, speed
mass, position
mass, weight
speed, distance
A windmill is an example of ________________energy.
thermal
mechanical
light
electrical
When does an object have NO kinetic energy?
When it's at rest.
When it's moving very slowly.
When it has no electrical charge.
The vibration of particles (matter, atoms) caused by the movement of energy through a substance.
mechanical energy
thermal energy
sound energy
gravitational energy
The total potential and kenetic energy of the particles in an object
thermal energy
electromagnetic (radiant) energy
kenetic energy
chemical energy
The form of energy associated with the position and motion of an object
(potential energy + kenetic energy = __________)
mechanical energy
gravitational energy
Law of Conservation of Energy
radiant energy
A lamp that plugs into a wall socket draws energy, which flows through a thin wire in the bulb, causing it to heat up until it glows. What energy transformations are taking place?
Chemical → light → electrical
Mechanical → sound → light
Thermal → solar → electrical
Electrical → thermal → light
An electric pencil sharpener uses electricity to make its motor spin. The pencil sharpener also makes noise and heats up. Which observation of the pencil sharpener demonstrates the law of conservation of energy?
The amount of electrical energy used equals the total amount of mechanical, sound, and thermal energy produced.
The amount of energy used by the electric pencil sharpener is greater than an electric lamp.
The electric pencil sharpener only uses energy when it is being used to sharpen a pencil.
The electric pencil sharpener is easier to use than the older version that was cranked by hand.
Turning the handle makes a current that causes the light bulb to glow. What are the energy transformations that happen in this hand generator?
Thermal → solar → light
Mechanical → electrical → light
Electrical → mechanical → light
Solar → light → electrical
When energy enters a system and then comes out of the system later, the law of conservation of energy states that–
some of the energy that entered the system will remain in the system.
the energy will always create a change in the properties of the parts of the system.
the form of energy that comes out of the system must be the same form that entered.
the amount of energy coming out of the system must equal the energy that entered the system.
Which of the following is a form of potential energy?
sound energy
chemical energy
mechanical energy
thermal (heat) energy
The law of conservation of energy states ___.
electrical energy can be transformed into other forms
energy can be created and destroyed
energy is never created nor destroyed
what goes up must come down
During energy transformations, energy is never ___.
released as heat
used to increase an object's potential energy
created or destroyed
completely transformed
A baseball is hit into the air with a bat. When does baseball have the greatest gravitational potential energy?
when it hits the ground
when it reaches its highest point
when it leaves the bat
when the mechanical and kinetic energies of the baseball are equal
___ is energy stored by things that stretch or compress.
Gravitational potential
Elastic kinetic energy
Chemical kinetic energy
Elastic potential energy
Calculate the gravitational potential energy of the object.
GPE = mgh
mass: 50
gravity: 10
height: 6
5320J
300J
66J
3000J
Calculate the kinetic energy.
KE=21mv2
mass: 200
velocity: 5
2,500J
250J
500,000J
none of the above
Think about a pan of water sitting on an electric stove. The stove is then turned on to high.
How is heat transferred from the stove to the pan?
conduction
convection
radiation
temperature
Sam placed a glass of water in the refrigerator. After about an hour he took it out and found it to be colder.
What is the most likely thing that happened?
the cold that was in the refrigerator transferred into the water
the particles in the water started to move faster
the cold from the refrigerator radiated into the glass
the heat that was in the water transferred out into the refrigerator
What is the scientific definition of temperature?
Temperature is how hot or cold something is
Temperature in Celsius
Temperature in Fahrenheit
Temperature is the speed of the molecules in an object
Think about a pan of water sitting on an electric stove. The stove is then turned on to high.
What will happen to the movement of the particles in the pan?
They will slow down
They will stay the same speed
They will stop moving
They will speed up
Freddie is drinking a cold glass of Kool-Aid in the sun on a hot day. He puts the glass down in the sun and the glass begins to warm.
What is happening to the small particles that make up Kool Aid? They. . .
contract
slow down
move faster
disappear
Which material would make the best insulator?
rubber
steel
copper
aluminum
Suppose that you are at the beach.
Energy from the Sun reaches you mainly through
conduction
convection
radiation
temperature
We know that wind is energy because wind. . .
is able to work
is a convection current
is caused by uneven heating
is caused by convection
Water currents can transfer heat by
conduction
convection
radiation
temperature
Two objects are touching.
How is heat transferred from one object to the other?
conduction
convection
radiation
reflection
What type of energy is heat energy?
potential
kinectic
chemical
mechanical
The Law of __________________ states that energy cannot be created or destroyed, but only changed from one form to another.
Energy Production
First Energy
Conservation of Resources
Conservation of Energy
Heat energy moves from a __________________ object to a _________________ object.
warmer, cooler
cooler, warmer
bigger, smaller
smaller, bigger
If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________
one reaches a temperature of zero
they both have an equal temperature
one runs out of energy
Which diagram correctly labels the phases of the molecules?
(Hint: SOLID on top or GAS on top?)
Molecules with MORE heat energy are...
spread further apart
packed tightly together
Molecules in a COLD substance are...
moving quickly all around
vibrating in place
Which arrow correctly shows the direction of GAINING heat?
(Hint: up or down?)
Which arrow correctly shows the direction of LOSING heat?
(Hint: up or down?)
There are four cups of hot cocoa. The cup sizes are shown. The temperature of the cocoa in each cup is 25 degrees celsius. Which cup has the MOST thermal energy(HEAT)?
Large cup (Trenta)
Small cup (Tall)
Venti
All three are the same temperature so they have same thermal energy
A type of matter that heat travels through easily
insulator
conductor
mass
A type of matter that slows down the transfer of thermal energy. Heat DOES NOT easily pass through
insulator
conductor
molecule
Transfer of heat through LIQUIDS or GASES
radiation
convection
conduction
This is heat …….
Conduction
Convection
Radiation
Which list correctly identifies the energy transfer between A, B and C
A- Conduction, B-Convection, C-Ratiation
A- Convection, B- Radiation, C- Conduction
A- Convection, B- Conduction, C- Radiation
A- Conduction, B- Radiation, C- Convection
Cold Pack on Person
Heat is transferred from the cold pack to the person.
Heat is transferred from the person to the cold pack
The cold pack is getting warmer. The person is getting colder.
The cold pack is getting colder. The person is getting warmer.
Hand Warmer in a Hand
Heat is being transferred from the hand warmer to the hand.
Heat is being transferred from the hand to the hand warmer.
The hand is getting warmer. The hand warmer is getting cooler.
The hand warmer is getting warmer. The hand is getting cooler.
Objects with MORE MASS have______________
lower potential energy
lower number of atoms
higher thermal energy
higher temperature
If an insulator is doing it's job well, the temperature of an object over time should...
rise slowly
lower quickly
show very little change
rise quickly
Temperature is the __________ _________ energy of moving particles
average potential
average kinetic
total potential
total kinetic
How could you increase the object's gravitational potential energy (GPE) without changing its distance from the ground (height) and gravity?
Decrease the object's mass
Increase the object's height
Increase the object's mass
Decrease the object's height
How could you increase the gravitational potential energy of an object without changing its mass and gravity?
Make the object larger
Lower the object towards the ground
Raise the object farther off the ground
Allow the object to roll on the ground
At which position does the child on the swing have the most gravitational potential energy?
W
X
Y
Z
What is the gravitational potential energy (GPE) of a 1 kilogram book that is 1 meter above the ground?
g = 9.8 m/s2
9.8 Joules
1.0 Joule
0.10 Joule
11.8 m/s2
A leaf has fallen off a tree and hit the floor of the woods. Why is PEg = 0 J ?
The leaf is no longer being acted upon by gravity.
The leaf no longer has any height off the ground.
The leaf no longer has any mass.
The leaf does not have 0 J of PEg.
A 50 kg jogger jumps 1.6 m off the ground. How much energy did they use to do this?
80 J
500 J
160 J
800 J
