WorksheetsUnit 2: Chapter 4, 5, & 8
Total questions: 69
Worksheet time: 1hrs 13mins
What is the kinetic energy (KE) of a 0.06kg tennis ball traveling at a speed of 150m/s?
(a)
What is the gravitational potential energy (GPE) of a 5.0kg object located 2.0m above the ground?
(a)
A student walks to school at a speed of 1.2m/s. If the student's mass is 53kg, what is the student's kinetic energy (KE)?
(a)
A 1600kg car travels at a speed of 12.5m/s. What is its kinetic energy (KE)?
(a)
A boy running around a track
Kinetic Energy
Potential Energy
An apple hanging from a tree
Kinetic Energy
Potential Energy
A rubber band that is stretched out
Kinetic Energy
Potential Energy
Energy of an object that is in motion
Kinetic Energy
Potential Energy
A car that is stopped at a traffic light
Kinetic Energy
Potential Energy
A ball rolling down a hill
Kinetic Energy
Potential Energy
In a closed system, how will the total amount of energy change over time?
It depends on what's happening in the system
It will increase
It will decrease
It will stay the same
What energy transformation takes place as a rock rolls down a hill?
None
Gravitational Potential Energy to Kinetic Energy
Thermal Energy to Kinetic Energy
Rock Energy to Mechanical Energy
What energy transformation takes place when a skateboarder uses their speed to skate up a ramp
Gravitational Potential Energy to Kinetic Energy
Kinetic Energy to Gravitational Potential Energy
Rotational Energy to Mechanical Energy
None
Which of the following energy transformations takes place as someone skids to a stop across the ground?
None of these
Thermal Energy to Sound Energy
Sound Energy to Kinetic Energy
Kinetic Energy to Thermal Energy
Which of the following energy transformations takes place as a battery-operated toy lights up and starts moving?
Elastic Potential Energy to Kinetic Energy
Electrical Energy to Chemical Energy
Chemical Energy to Kinetic Energy
None of these
Which of the following energy transformations takes place when you plug in a fan and the blades start turning
Electrical Energy to Kinetic Energy
Rotational Energy to Wind Energy
Thermal Energy to Cold Energy
None of these
Which of the following energy transformations takes place as someone bounces up from a trampoline
Elastic Potential Energy to Kinetic Energy
Thermal Energy to Kinetic Energy
Gravitational Potential Energy to Kinetic Energy
None of these
At what point on the image does the roller coaster car have the greatest gravitational potential energy?
A
B
C
D
At what point on the image does the roller coaster car have the greatest kinetic energy? (ignore friction)
A
B
C
D
At the point when the roller coaster car in the image has the lowest gravitational potential energy, which of the following statements is true? (ignore friction)
It has the greatest kinetic energy
It has the same total amount of energy as it did when it started falling
It is at the lowest height above the ground
All of these are true
Which of the following would be classified as an environmental cost of hydroelectric power? SC.912.L.17.11
desertification
disruption of freshwater ecosystems
increased biodiversity
water pollution
Biomass power is a renewable energy source derived from plant and animal products. Which of these is a benefit of using biomass for power compared to nonrenewable resources? SC.912.L.17.11
Biomass power increases the amount of oxygen in the air.
Biomass power reduces the emission of greenhouse gasses.
Biomass power increases the clearing of forests and grasslands for energy crops.
Biomass power reduces organic waste in landfills and waste-treatment facilities.
Much of the oil we burn for energy comes from drilling in marine environments such as the Gulf of Mexico or the Persian Gulf. Which of the following is not a major public concern associated with drilling for oil in large bodies of water?
The oil being taken is a nonrenewable resource.
It is very expensive for companies to drill for oil.
The ecosystems from which the oil is being taken are fragile.
Using oil for energy releases greenhouse gases into the atmosphere.
A remote village is located near the ocean and several rivers. The climate is usually partially cloudy with periodic winds. The village advisory committee is reviewing several alternative energy sources. Committee members want to select a source that produces very little pollution, reduces greenhouse gases, is renewable, and is cost-effective over time.
Which energy source should they choose? SC.912.L.17.11
coal
hydroelectric
nuclear
solar
Some people see hydroelectric energy as a clean alternative to fossil fuels. Others believe it is dangerous for the migratory salmon population. What do these opinions illustrate about the environmental decision making process related to renewable energy resources? SC.912.L.17.11
The decision should be the responsibility of each citizen.
The decision should be made by weighing the risks and costs against the benefits.
The decision should usually favor older methods of energy production over newer methods.
The decision should be made by taking into account the present needs of the citizens without looking toward the future.
Which of the following would be considered a disadvantage of using renewable energy sources? SC.912.L.17.11
highly polluting
high running cost
high waste disposal cost
unreliable supply
What is the primary benefit of using wind power and solar energy directly for energy, rather than coal and natural gas? SC.912.L.17.11
Coal and natural gas are difficult to acquire.
Coal and natural gas are extremely efficient.
Wind power and solar energy are far less expensive to use.
Wind power and solar energy are renewable energy sources.
Fossil fuels are increasingly in demand. What is an example of an effect on the marine environment that results from the demand for fossil fuels? SC.912.E.6.6
Marine life populations dwindle due to loose oil in the water.
Fish populations are hunted by predatory lionfish.
Manatees crowd near a hot water run-off from a power plant.
Zebra mussels infest the Great Lakes due to being attached to ships.
What are the 3 fossil fuels?
Coal, Oil, Uranium
Coal, Hydroelectric, Oil
Natural gas, Oil, Coal
Oil, Natural Gas, Geothermal
Identify 3 items that are made from fossil fuels.
SC.912.L.17.11
T-shirt, Water Bottle, Lead
Cheese, Milk, Eggs
Newspaper, Fruit, Seeds
Gas, Motor Oil, Plastic Lawn Chair
Identify 3 renewable items that are made from plants.
SC.912.L.17.11
Newspaper, Baseball Cap, Fruits
Socks, Leather Shoe, Eggs
Uranium, Lead, Iron
Motor Oil, Water Bottle, Gas
What do renewable and nonrenewable energy resources have in common?
Types of energy, Used to produce electricity, Natural resources
Less cost-effective, Produces CO2, Infinite Resources
Increase in global warming, Can't be replenished, Finite resources
More cost-effective, Infinite Resources, Doesn't produce CO2
an oily flammable bituminous black liquid that occurs in the upper strata of the earth.
Natural Gas
Motor Oil
Petroleum
Tar
Observe the diagram. Which statement is true about the kinetic energy of the molecules in the containers?
The molecules are moving faster in Diagram A
The molecules are moving slower in Diagram A
The molecules are moving at the same rate in both diagrams
Which description defines heat?
total thermal energy of an object or substance
change in the temperature of a substance in degrees Celsius
energy transferred between objects at different temperatures
average kinetic energy of the particles that make up a substance
What is needed to calculate work?
time and distance
speed and distance
force and direction
acceleration and velocity
Is this an example of work?
Yes
No
What is the unit of measurement for work?
meters
newtons
m/s
Joules
Is this an example of work?
Yes
No!
You have to push with 15 N of force to move it 10 meters. How much work do you do?
15 Joules
150 Joules
1.5 Joules
.67 Joules
500 J of work is done by a person who uses a force of 50N to move a box, how far does it go?
10 m
0.1 m
25,000 m
10 J
Newtons are the unit for _____________.
Work
Distance
Acceleration
Force
A push or a pull
Work
Force
Acceleration
Speed
For work to be done on an object, the direction and force have to be going the same direction.
True
False
Picking up a box is an example of____________
Work
Not Work
Pushing a box across the floor is an example of
Work
Not Work
You exert 200 J of work by pulling on an object with 20 N of force. What distance is the object moved?
.01 m
10 m
10 J
4,000 m
The unit for energy and work is
meters
joules
newtons
watts
Energy is
stored work
is destroyed when used
can not be changed into another form of energy
measured in newtons
The law of Conservation of Energy says________
energy is constantly created
energy can not be created or destroyed instead it changes from one form to another
energy can not change forms
What is needed to calculate work?
time and distance
speed and distance
force and direction
acceleration and velocity
