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WorksheetsGOLDI SCIENCE QUIZ 02 MARCH 2022
Total questions: 74
Worksheet time: 39mins
What are renewable resources?
A limited amount and cannot be replaced in a human life time.
Plastic bags
Coal, oil, and natural gas
Can be replaced in our lifetime through natural processes
Coal comes from...
from animals that died millions of years ago.
from plants that died millions of years ago.
A factory
Burning fossil fuels
We can get energy from coal by...
Breaking it down
Digging it up
Burning it
Rubbing it together
How can we conserve energy?
use less coal, oil, and natural gas.
use fabric bags instead of plastic.
use public transportation instead of driving a car.
All of the above
A RENEWABLE resource is a resource that...
Will always be available, so you can use as much as you need.
Once you use it, it's gone and you can't use it any more.
gets used underwater.
Smells really good.
A NONRENEWABLE resource is a resource that...
Will always be available, so you can use as much as you need.
Once you use it, it's gone and you can't use it any more.
gets used underwater.
Smells really good.
What is a fossil fuel?
A dinosaur that pumps gas
Giant Rocks
Resources that are found in the ground
Something that is good to eat
Hydroelectric power produces electricity using.....
Wind
Sunlight
Moving water
Dung
Energy we get from earth's interior heat
Geothermal
Solar Energy
Wind Energy
Hydroelectricity
A form of energy that transfers from the higher temperature objects to the lower temperature objects
Temperature
Heat
Thermometer
No correct answer
......is a bad conductor of heat
copper
iron
plastic
Aluminium
..........is the degree of hotness or coldness of a body .
Heat
Thermometer
Temperature
No correct answer
Materials that conduct heat are called.........
Heat conductors
Heat insulators
Aluminium is used in making .......
Handles of kettles
cooking pots and kettles
Heavy blankets
........is used in making the insulating glass windows.
Plastic
Air
Iron
No correct answer
we wear woolen clothes in winter to..........
keep the weather warm
keep the body warm
conduct the heat
Leaving spaces between the railway bars .........
to prevent the leakage of heat
to avoid train accidents
to keep the body warm
The handle of electric iron is made of .......
Iron
Aluminium
Plastic
Heat is used in our daily life in ........
Cooking
Heating water
Warming the house
All of them
When air is heated, what happens to its mass?
increases
decreases
remains the same
When air is heated, its volume ____________.
increases
decreases
remains the same
When air is heated, its density ___________.
increases
decreases
remains the same
The diagram shows a refrigerator. The cooling unit is placed at the top. The cooling unit cools the air near it. What happens to the density of the air as it cools, and how does it move?
The density of air increases. It moves down.
The density of air increases. It moves up.
The density of air decreases. It moves down.
The density of air increases. It moves up.
The diagram shows some rice being boiled in a pan. What is the main methods by which thermal energy is transferred (i) through the metal pan and
(ii) through the water?
(i) conduction (ii) conduction
(i) convection (ii) convection
(i) conduction (ii) convection
(i) convection (ii) conduction
Convection can take place in ____________.
solids only.
liquids only.
liguids and gases only.
solids, liquids and gases.
Which of the following is an application of convection?
The movement of heat through a metal pan to the food.
The use of ice box to keep drinks cool.
The sea breeze that blows from sea to land.
The use of wool blanket to keep the body warm.
Which is the best position to place the heating element in an electric heater?
A
B
C
D
In the process of convection, energy is transferred _________.
because of temperature differences in a solid
because of density differences in a liquid
by the diffusion of molecules throughout a fluid
by the vibration of molecules
Which of the following correctly shows the direction of convection currents in water?
A
B
C
D
Some dye in a beaker of water is gently heated. Why are the streaks of dye seen in the water?
The hot dye is a better conductor than the cool water.
The hot dye is a better convector than the cool water.
The hot water is less dense than the cool water.
The hot water is denser than the cool water.
What is non-ionizing radiation?
anything that strips away electrons from atoms
radio & x-rays
visible light
anything that can potentially harm living cells
How can light (radiation) best be described?
by using wavelengths only
as having different frequencies
something that can be measured
as having properties of both a wave and a particle
___ is the distance between crest to crest or the time it takes for one complete cycle to pass.
Frequency
Wavelength
Wien's Law
Stefan's Law
Which statement best describes frequency?
number of photons that cross Earth's orbit per second
number of crests in a wave that pass a point in one second
the amount of time a wave takes to travel 1 km
the amount of wavelengths per minute
What is visible light composed of?
ROYGBIV
all of the colors of the rainbow
purely white light
waves and frequencies
Our eyes are able to see the color of an object due to visible light wavelengths
being split into ROYGBIV.
scattering off in all directions.
being absorbed except for the color (wavelength) we see.
stretching and compressing.
Visible light ranges from about 400 nanometers - or ___ in color - to around 700 nanometers or
red, blue
blue, red
indigo, green
orange, violet
Radio, micro, infrared (IR), visible light, ultraviolet (UV), X-rays & gamma rays all make up
a specific type of modulated sound.
the electromagnetic (EM) spectrum.
the stars.
the universe as we know it.
Radio waves have the ___ wavelengths and ___ frequencies.
longest, lowest
shortest, highest
longest, highest
highest, shorter
Gamma rays have the ___ wavelengths and the ___ frequencies.
longest, highest
shortest, highest
longest, lowest
shortest, lowest
Only radio waves, some infrared and visible light can penetrate Earth's atmosphere.
True
False
Astronomers only use ground-based telescopes to observe objects in space.
True
False
Temperature is measured using the average kinetic energy of an object's particles.
True
False
A perfect ___ is a theoretical object that absorbs 100% of the radiation that falls on it.
black hole
thermal radiation absorber
molecular sphere
blackbody
A blackbody curve on a graph tells us how an object releases
radio waves according to Planck's constant.
light through a black hole's event horizon.
radiation over different frequencies.
heat over time.
Blackbody curves also tell astronomers about the ___ of an object (like a star).
rotational energy
temperature
distance
composition
___ law states that the hotter an object is the "bluer" (shorter wavelengths) its radiation.
Wien's
Stefan's
Plank's
Newton's
Which statement best describes Stefan's law?
as temp. decreases the energy emitted by an object increases
there can never be a 100% perfect blackbody object
as temp. increases the energy emitted by an object increases
as temp. increases the energy emitted by an object decreases
The Doppler Effect describes how objects that are moving away from an observer are
red-shifted.
showing transverse motion.
showing radial motion.
blue-shifted
True "space motion" of an object can be determined by combining the object's
doppler & radial motion.
radial & transverse motion.
temperature & blackbody radiation.
mass, size & vortex motion.
Hot coffee is stirred with a spoon, the spoon gets hot due to ...
Conduction
Radiation
Convection
A chair is placed several feet from a fire in a fireplace. The fire has a glass screen. The side of the chair facing the fireplace gets warm because of ...
Conduction
Radiation
Convection
A certian type of decorative lamp contains colored liquids. These liquids form globs that break off and rise to the top of the liquid. The globs rise due to ...
Conduction
Radiation
Convection
Near the ceiling of a room the air is warmer. The warm air rises because of ...
Conduction
Radiation
Convection
A college student holds the back of his hand near an iron to see if it is hot. Heat is transferred to his hand by ..
Conduction
Radiation
Convection
A heater is placed under one corner of a waterbed mattress. Warm air moves throughout the mattress because of ...
Conduction
Radiation
Convection
A certain type of stainless steel cookware has a layer of copper applied to the bottom to help it heat evenly. The copper transfers heat to the pan by ...
Conduction
Radiation
Convection
In a swimming pool, the water near the surface is slightly warmer. THe warm water rises because ...
Conduction
Radiation
Convection
One end of a copper rod is placed in a flame of a Bunsen burner. Small pieces of wax placed along the rod melt a progressively larger distance from the flame. Heat is transferred through the rod by ...
Conduction
Radiation
Convection
A house burns down. On the house across the street, all the vinyl siding is twisted and warped by the heat. The heat was transferred across the street by ...
Conduction
Radiation
Convection
The metal skewer gets so hot that you drop your marshmallow in the campfire because of...
Conduction
Radiation
Convection
A huge rock at a state park gets so hot during the day that you cannot sit on it from ...
Conduction
Radiation
Convection
A huge rock at a state park gets so hot during the day that you cannot sit on it from radiation. You are able to lay on the same rock at night and keep warm by ...
Conduction
Radiation
Convection
A fireman feels a door and it is hot from the fire on the other side due to ...
Conduction
Radiation
Convection
The cause of weather systems on earth is ...
Conduction
Radiation
Convection
Warm air over the beach rises while cooler dense air from the ocean rushes in due to ...
Conduction
Radiation
Convection
You are in the top bunk of a bunk bed and you want to turn down the air conditioner on while your friend on the bottom bunk is fine is caused by ...
Conduction
Radiation
Convection
A hot air balloon rises into the sky because of ...
Conduction
Radiation
Convection
A chocolate bar melts in a car on a sunny day because of ...
Conduction
Radiation
Convection
When you pull your Totino's Pizza rolls out of the oven and the pan is so hot it burns your hand because you forgot your protective mit. The energy move to your hand from the pan to your hand through ...
Conduction
Radiation
Convection
