Flag question: Question 26
Question 26
1 pts
A city is considering switching to geothermal power for their electricity needs. Which of the following is a disadvantage of this plan?
Group of answer choices
It is not a renewable resource.
It can be expensive to set up.
It has a negative impact on the environment.
It requires a lot of maintenance.
Flag question: Question 27
Question 27
1 pts
Which of the following is NOT an example of a renewable resource?
Group of answer choices
Wind power
Coal
Solar power
Hydropower
Flag question: Question 28
Question 28
1 pts
Which of the following is true about nuclear power?
Group of answer choices
It produces very little waste.
It is a renewable resource.
It has no negative impact on the environment.
It has the potential for serious accidents.
Flag question: Question 29
Question 29
1 pts
What is the best way to conserve energy in your home?
Group of answer choices
Leave lights on all day.
Use energy-efficient appliances.
Turn up the heat in the winter.
Keep windows and doors open all day.
Good morning!! 7:49 AM as of right now.
And I only have 4 more assignments for the remainder of the school year! Yay. So i need help please.
A storm is moving in quickly. The weather station reported that it is traveling west at 40 miles per hour. This information describes the storm's
Group of answer choices
velocity
speed
acceleration
direction
Flag question: Question 2
Question 21 pts
The express train can travel 100 miles per hour. This information describes the train's
Group of answer choices
speed
acceleration
velocity
direction
Flag question: Question 3
Question 31 pts
Which of the following is an example of Newton's second law of motion?
Group of answer choices
A tissue and a rock are dropped from a ladder. The rock exerts a greater force when it hits the ground.
A person stands on a chair and pushes down, and the chair pushes upwards on the person.
Catie's skateboard hits a curb and she falls forward onto the grass.
Tires from a bike push against the road, and the road pushes back.
Flag question: Question 4
Question 41 pts
Which statement is true?
Group of answer choices
Gravity is the force of resistance to a change in position. The greater the distance between two objects, the greater this force will be.
Gravity is the force of attraction between two objects with mass and is dependent on the distance between these objects.
Gravity is the force that repels two objects that have opposite charges. It is dependent upon the charges of the objects.
Gravity is a force that keeps objects moving in space. The less the object weighs, the further out in space gravity will pull the object.
Flag question: Question 5
Question 51 pts
There is an increase in the amount of work completed; all other factors have remained the same. As a result, the amount of power will
Group of answer choices
increase
remain the same
decrease
decrease, then increase
Flag question: Question 6
Question 61 pts
In order to move a bag of dog food across a room that measures 8 meters in length, you apply 10 newtons of force. How much work was done?
Group of answer choices
10 joules
18 joules
80 joules
2 joules
Flag question: Question 7
Question 71 pts
A rock resting high on a cliff is an example of an object with what type of energy?
Group of answer choices
Kinetic energy because it has the ability to do work
Kinetic energy because it is doing work
Potential energy because it is doing work
Potential energy because it has the ability to do work
Flag question: Question 8
Question 81 pts
What is gravity? Gravity is the force
Group of answer choices
that repels objects that have like charges
of attraction between two objects; it is not related to the object's mass
of attraction between two objects; it is related to the object's mass
that acts on objects when they are pushed
Flag question: Question 9
Question 91 pts
Gravity is affected by the
Group of answer choices
charge of the objects and whether the charges are the same or opposite
mass of the objects and the distance between two objects
the size of the objects and the difference in charge
force applied to the object when moving
Flag question: Question 10
Question 101 pts
Ian is working on comparing and contrasting forces. He is thinking of gravitational force and strong nuclear force. Which of the following is one way these forces are different?
Group of answer choices
Strong nuclear force acts on objects and gravity does not.
Gravitational force is much stronger.
Gravity works only in a short range.
Gravity is dependent on mass and strong nuclear force is not.
Flag question: Question 11
Question 111 pts
Which statement best describes energy and matter in a closed system?
Group of answer choices
Energy can flow into and out of the system but matter cannot.
Energy and matter are contained within a closed system.
Energy and matter flow into and out of the system.
There is no energy in a closed system; there is matter.
Flag question: Question 12
Question 121 pts
When a sound source is moving toward the observer, the observer will hear a higher pitch. This is due to
Group of answer choices
a decrease in the frequency of the sound wave
a decrease in the amplitude of the sound wave
an increase in the amplitude of the sound wave
an increase in the frequency of the sound wave
Flag question: Question 13
Question 131 pts
Which statement represents how light travels?
Group of answer choices
Light given off from a moving source will travel faster in a vacuum.
Light travels at the same speed even if the light source is moving.
Light given off from a moving source will travel faster in air.
Light travels slower if the light source is moving.
Flag question: Question 14
Question 141 pts
This type of material will not allow the flow of electric current. This material is called a(n)
Group of answer choices
circuit
insulator
conductor
resistor
Flag question: Question 15
Question 151 pts
Which statement best explains the relationship between current, voltage, and resistance?
Group of answer choices
If we increase the amount of voltage applied, and do not change the resistance, this will result in a decrease in current.
If we decrease the amount of current, this will not affect the amount of voltage, only the amount of resistance.
If we increase the amount of voltage applied, and do not change the resistance, we will also increase the current.
If we decrease the current applied, and do not change the resistance, we increase the voltage.
Flag question: Question 16
Question 161 pts
Which of the following is a way that radio waves and gamma rays are similar?
Group of answer choices
They are both harmful to humans.
They are both electromagnetic waves.
They are both used to transmit information.
They are both low energy waves.
Flag question: Question 17
Question 171 pts
Which type of electromagnetic wave is used for warming, photosynthesis in plants, and making vitamin D in humans?
Group of answer choices
Visible light wave
Gamma ray
UV wave
Radio wave
Flag question: Question 18
Question 181 pts
You want to create a special device to keep coffee warm. Which type of electromagnetic wave would be most useful to investigate?
Group of answer choices
Radio waves
Gamma rays
Infrared waves
X–rays
Flag question: Question 19
Question 191 pts
Which example describes a non–renewable resource?
Group of answer choices
Refineries process oil, found in the Earth, and turn it into gasoline to be used by cars.
In some areas in California, people can use heat found deep in the Earth to heat their homes.
The hilltop lodge has a windmill that generates enough electricity to power the entire house.
The town has decided to install solar panels on all city buildings.
Flag question: Question 20
Question 201 pts
Select the example that best describes a renewable resource.
Group of answer choices
The airplane can carry thousands of gallons of jet fuel needed to fly from New York to London.
Our lawn mower is powered by an engine that uses both oil and gasoline.
My town is powered by electricity that is generated by the energy from the flow of water through a large dam.
All the houses built in the new neighborhood had natural gas available, which will be used for cooking and heating.
Flag question: Question 21
Question 211 pts
Desalinization plants remove the salt from sea water and make it usable for drinking and irrigation. Review the following statements and select the one that best describes how this technology has had a positive impact on the environment.
Group of answer choices
Of all the water on Earth, 97% is salt water, 3% is fresh water and much of this is locked up in ice. All living things need fresh water to survive. As populations grow, the demand for fresh water will increase. If humans can use desalinization plants to make the fresh water they need, more fresh water will be available for the plants and animals that need it.
Some areas by the coast are very remote and far from fresh water supplies. These areas are great places to build vacation resorts. These resorts use desalinization plants to provide their guests with fresh water. Desalinization plants will allow for more resorts to be built in remote areas along the coast.
Some islands in the Caribbean do not have any fresh water. This has limited growth on these islands. Building a desalinization plant could provide jobs for the local people. This can make the economy on these islands more stable.
Desalinization plants are expensive to build and maintain; however, on some small islands, where there is no fresh water, they provide water to those who need it. Without these plants people were dependent on capturing rainwater in order to survive. In times of drought, when there was not enough rain, people used to have to buy water that was imported from other areas.
Flag question: Question 22
Question 221 pts
The energy released from splitting atoms allows us to generate electricity using
Group of answer choices
Geothermal power
Hydroelectric power, which is a non–renewable resource
Nuclear power, which is a non–renewable resource
Solar power, which is a renewable resource
Flag question: Question 23
Question 231 pts
If you were asked which type of power, generated from a non–renewable resource, has the least negative effect on the environment, you would choose
Group of answer choices
nuclear power
hydropower
geothermal power
solar power
Flag question: Question 24
Question 241 pts
In the United States, when we use this non–renewable resource to generate electricity, the environment is harmed.
Group of answer choices
Petroleum
Nuclear
Coal
Natural gas
Flag question: Question 25
Question 251 pts
A city is considering switching to geothermal power for their electricity needs. Which of the following is an advantage of this plan?
Group of answer choices
It in inexpensive to build.
It uses water to power large turbines.
It is commonly used across the entire United States.
It uses less land area than gas power plants.
9 answers
can you answer all please and like number them? and just say the answer, dont rephrase it
1. Velocity
2. Speed
3. Tires from a bike push against the road, and the road pushes back.
4. Gravity is the force of attraction between two objects with mass and is dependent on the distance between these objects.
5. Increase
6. 80 joules
7. Potential energy because it has the ability to do work
8. of attraction between two objects; it is related to the object's mass
9. mass of the objects and the distance between two objects
10. Gravity is dependent on mass and strong nuclear force is not.
11. Energy and matter are contained within a closed system.
12. an increase in the frequency of the sound wave
13. Light travels at the same speed even if the light source is moving.
14. insulator
15. If we increase the amount of voltage applied, and do not change the resistance, we will also increase the current.
16. They are both electromagnetic waves.
17. UV wave
18. Infrared waves
19. Refineries process oil, found in the Earth, and turn it into gasoline to be used by cars.
20. My town is powered by electricity that is generated by the energy from the flow of water through a large dam.
21. Of all the water on Earth, 97% is salt water, 3% is fresh water and much of this is locked up in ice. All living things need fresh water to survive. As populations grow, the demand for fresh water will increase. If humans can use desalinization plants to make the fresh water they need, more fresh water will be available for the plants and animals that need it.
22. Nuclear power, which is a non-renewable resource
23. nuclear power
24. Coal
25. It uses less land area than gas power plants.
26. It can be expensive to set up.
27. Coal
28. It has the potential for serious accidents.
29. Use energy-efficient appliances.
2. Speed
3. Tires from a bike push against the road, and the road pushes back.
4. Gravity is the force of attraction between two objects with mass and is dependent on the distance between these objects.
5. Increase
6. 80 joules
7. Potential energy because it has the ability to do work
8. of attraction between two objects; it is related to the object's mass
9. mass of the objects and the distance between two objects
10. Gravity is dependent on mass and strong nuclear force is not.
11. Energy and matter are contained within a closed system.
12. an increase in the frequency of the sound wave
13. Light travels at the same speed even if the light source is moving.
14. insulator
15. If we increase the amount of voltage applied, and do not change the resistance, we will also increase the current.
16. They are both electromagnetic waves.
17. UV wave
18. Infrared waves
19. Refineries process oil, found in the Earth, and turn it into gasoline to be used by cars.
20. My town is powered by electricity that is generated by the energy from the flow of water through a large dam.
21. Of all the water on Earth, 97% is salt water, 3% is fresh water and much of this is locked up in ice. All living things need fresh water to survive. As populations grow, the demand for fresh water will increase. If humans can use desalinization plants to make the fresh water they need, more fresh water will be available for the plants and animals that need it.
22. Nuclear power, which is a non-renewable resource
23. nuclear power
24. Coal
25. It uses less land area than gas power plants.
26. It can be expensive to set up.
27. Coal
28. It has the potential for serious accidents.
29. Use energy-efficient appliances.
A city is considering switching to geothermal power for their electricity needs. Which of the following is an advantage of this plan?
Group of answer choices
It in inexpensive to build.
It uses water to power large turbines.
It is commonly used across the entire United States.
It uses less land area than gas power plants.
Group of answer choices
It in inexpensive to build.
It uses water to power large turbines.
It is commonly used across the entire United States.
It uses less land area than gas power plants.
It uses less land area than gas power plants.
THANK YOU SO MUCH!! This was my final assignmet for science! Now the last 4 is math! THANK YOU
You're welcome! Good luck with your math assignments! If you need any help with those, feel free to ask. You've got this!
I was so worried about failing 9th grade, thank God I got my assignments thanks to my parents (and the help of you!!) So thank you!
That's wonderful to hear! You should be proud of yourself for working hard and getting through your assignments. Keep up the good work, and remember that asking for help is a great way to learn and succeed. Best of luck with the rest of your school year!
3 answers