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Worksheets2009 Released Questions 41-50
Total questions: 12
Worksheet time: 9mins
Name
Class
Date
1.
A student suspects that there is a relationship between the amount of sunny weather in a given state and the amount of solar energy used by its inhabitants. In order to find out if this idea is correct, the student will need which information for each state?
a)
The efficiency of solar technology used in that state.
b)
The location and type of solar cells used in that state
c)
The percentage of days that have enough sunlight to power a solar water heater.
d)
The number of sunny days per year and the amount of solar power used per year
2.
During a fireworks show, a family sees the spray of sparkles from an exploding firework high in the sky and , a moment later, hears the pop. Which of these best explains why the pop and spray do not seem to occur at the same time?
a)
Light and sound travel through the air
b)
sound travels through a vacuum
c)
Sound travels slower than light
d)
Light and sound travel at the same speed.
3.
Which gas do animals need to carry out life functions?
a)
Oxygen
b)
Carbon Monoxide
c)
Helium
d)
Carbon Dioxide
4.
On a sunny morning, students standing in front of a store window noticed an image of themselves in the glass. Why did the students see their image in the glass?
a)
some of the light was reflected off the surface of the glass
b)
some of the light passed through the glass window
c)
some of the light was absorbed by the glass surface
d)
some of the light separated into different colors
5.
Which of the following is a nonrenewable energy source?
a)
solar collector
b)
wind turbine
c)
fossil fuel
d)
hydroelectric generator
6.
Energy from the Sun is distributed around the Earth by---
a)
subduction and rift zones
b)
radiation and convection
c)
tectonic plates
d)
solar flares
7.
Students conducted an investigation to determine if unknown liquids were acids or bases. What was the independent variable in this investigation?
a)
The sample of liquid
b)
indicator
c)
color change
d)
identification
8.
Chloroplasts are found only in organisms that are able to....
a)
generate their own energy(food)
b)
grow to a larger size
c)
migrate to other ecosystems
d)
hunt for prey
9.
Laundry in a clothes dryer often becomes charged with static electricity while drying. Which of these best explains why a clothes dryer often generates static electricity
a)
Short circuits in the dryer charge the laundry.
b)
Clothes with metal pieces conduct electricity in the dryer
c)
Electrons are transferred as clothes rub against each other in the dryer
d)
Heat from the dryer charges the air and produces lightning
10.
Earth is different from the other planets in our solar system because it---
a)
orbits a star
b)
has collided with meteorites
c)
has oceans and lakes
d)
makes up the majority of the mass of our solar system
11.
CO2 + H2O --Sunlight---------> O2 + C6H12O6
In the equation for Photosynthesis, CO2 + H2O are considered ......
In the equation for Photosynthesis, CO2 + H2O are considered ......
a)
Reactants
b)
Products
c)
Compounds
d)
Element
12.
CO2 + H2O --Sunlight---------> O2 + C6H12O6
In this equation, O2 and C6H12O6, are considered the ______________________.
In this equation, O2 and C6H12O6, are considered the ______________________.
a)
reactants
b)
products
c)
compounds
d)
elements
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