Question

I need all of these answered

Which statement is correct? (2 points)

Light can travel in a vacuum, and it travels faster if the light source is moving.

Light can travel in a vacuum, and its speed is constant if the source is moving or stationary.

Light can travel in a vacuum and will travel faster if the light source is moving.

Light can travel in a vacuum, and it travels more slowly if the light source is stationary

Select the statement that correctly describes how light travels. (2 points)

Light travels at different speeds when the light source is moving and cannot travel in a vacuum.

Light cannot travel through a vacuum and travels slower when the light source is moving away.

Light can travel in a vacuum, and the speed at which it travels changes if the source is moving.

Light travels at a constant speed through a vacuum, even if the light source is moving.
6.
Which statement best represents scientific laws? (2 points)


Scientific laws are statements that contain scientists' opinions of how the world works.

Scientific laws are factual statements that explain why certain natural phenomena occur.

Scientific laws are theories that have been tested, proven, and adopted as laws.

Scientific laws are descriptions of observed phenomenon generally accepted as facts.
7.
Which statement best describes scientific theories? (2 points)


Scientific theories are what laws are called before they are proven.

Scientific theories attempt to explain why natural events occur.

Scientific theories are based on opinions.

Scientific theories describe natural events.
8.
In order to be considered science, a concept must be (2 points)

questionable and testable.

obvious and factual.

testable and obvious.

testable and observable.
9.
Which of the following could be considered a scientific statement? (2 points)

Pizza is the best food on Earth.

Jim believes in ghosts.

Ants live in colonies.

Brown is an ugly color.
10.
Which question could be answered using the scientific method? (2 points)

Why does my dog like to sit on the sofa?

Would Mars be a fun place to live?

Are butterflies happy?

Do vitamins help people stay healthy?
11.
Which situation would be considered pseudoscience? (2 points)

Students gather to identify plants in an area.

Students gather to record their beliefs about paranormal activity.

Students gather to weigh and tag a bird ready to be released by a bird hospital.

Students gather to record their results of water testing from a local stream.
12.
You are investigating an experimental veterinary procedure. What would be the most reliable resource? (2 points)

Read books about how to take care of pets.

Google "veterinarians" online.

Contact the local society for veterinarians.

Visit a local animal hospital.
13.
Your town is thinking about building a nuclear power plant. You will be asked to vote on it. Which source would provide the most reliable information about the safety of nuclear power plants? (2 points)

the Nuclear Regulatory Commission

your local newspaper

the company that is going to build the plant

the mayor of another town that already has a nuclear plant
14.
The state is thinking about building a dam. They hire a team of biologists and environmental scientists to study the impact of the dam on the local wildlife. Which statement best explains how this study will be useful to the state? (2 points)

The state will be able to weigh the benefits against the negative impact that the project might have in order to decide if it is safe to build the dam.

A local fishermen's club is against the project. This study will prove that there will be no impact on fish populations.

Environmentalists will be opposed to the project. The study will prove the dam should be built, and the environmentalists will have to consent.

The state will be able to save money on the construction of the dam since they will have more information about the area.

Answer 1

1.Light waves can travel in a vacuum and will travel at a constant speed even if the light source is moving.

2.Light can travel in a vacuum, and the speed at which it travels changes if the source is moving.

3.Scientific laws are theories that have been tested, proven, and adopted as laws.

4.Scientific theories attempt to explain why natural events occur.

5.testable and observable.

6.Ants live in colonies.

7.Do vitamins help people stay healthy?

8.Students gather to record their beliefs about paranormal activity.

9.Visit a local animal hospital

10.the Nuclear Regulatory Commission

11.the state will be able to weigh the benefits against the negative impact that the project might have in order to decide if it is safe to build the dam.

Answer 2

1. Answer: Light can travel in a vacuum, and its speed is constant if the source is moving or stationary.

Light travels at constant speed in vacuum even if the source is moving or stationary. If the source is moving, the apparent frequency/ wavelength changes.

2. Answer:

Light travels at a constant speed through a vacuum, even if the light source is moving. If the source is moving, the apparent frequency/ wavelength changes.

3. Answer: Scientific laws are theories that have been tested, proven, and adopted as laws. The scientific law does not provide full explanation of how a natural phenomenon occurs.

4. Answer: Scientific theories attempt to explain why natural events occur. The scientific law does not provide full explanation of how a natural phenomenon occurs.

5. testable and observable. In order for a concept to be considered as science, it should be testable and observable. Then only it can be ruled in or out of a scientific theory.

6. Ants live in colonies.

This is statement is scientific because it can be observed and proved.

7.Do vitamins help people stay healthy?

The above questions can be answered using a scientific method. The effect of lack of vitamins in diet can be observed on the health of a person.

8. Students gather to record their beliefs about paranormal activity. Paranormal activities are not considered scientific because there is no scientific theory or law explaining this. Hence, this situation is pseudoscience.

9.Visit a local animal hospital. This would help in investigating an experimental veterinary procedure closely with the veterinarians.

10. the Nuclear Regulatory Commission would be exactly able to provide a reliable information about safety of nuclear power plants in the town.

11. The state will be able to weigh the benefits against the negative impact that the project might have in order to decide if it is safe to build the dam. The environmentalists or biologists would study the impact of the dam on the local wildlife and create a report .