Primeira página
/
Física
/
4. A swimming team wants to select one of three fabrics for their new swimsuits Each fabric is made of a material. The team decides to do the following experiment: They cut the same size pieces from each fabric and wet each piece with the same amount of water. They hang the pieces in the sunlight and they check every two minutes to see if any of the pieces are dry. What can the team find out about the different fabrics from doing just this experiment? A. If the amount of water affects how long it takes the pieces of fabric to dry. B. If the type of fabric affects how long it takes the pieces of fabric to dry. C. If the amount of water and the amount of light affect how long it takes the pieces of fabric to dry. D. If the type of fabric, the amount of water , and the amount of light affect how long it takes the pieces of fabric to dry. 5. In what ways is a model similar to the thing it represents? A. A model must be identical to the thing it in every way. B. A model must be identical to the thing it represents in every way except that it can be made out of different materials. C. A model must be identical to the thing it represents in every way except that it can be a different size. D. A model can be different from the thing it represents in either its size or the materials it is made of. 6. Scientists share the results of their experiments with other scientists and expect them to try to find flaws in their data and experimental design. What is the purpose of doing this? A. It provides an easy way to find out which scientists are good at designing experiments. B. It makes it possible to award grant money for the best research projects. C. It helps scientists to improve their experiments and interpret their data accurately. D. It helps scientists to become better at spotting mistakes. 7. Which of these best describes the basis on which new scientific ideas are accepted or rejected? A. Popular support B. Historical support C. Carefully collected and analyzed data D. Moral and ethical beliefs . The best method to separate paper clips from a mixture of salt and pennies is: A. Filtering B. Evaporation C . Magnetism D Chromatography

Pergunta

4. A swimming team wants to select one of three fabrics for their new swimsuits Each fabric is made of a material. The team decides to do the following experiment: They cut the same size pieces from each fabric and wet each piece with the same amount of water. They hang the pieces in the sunlight and they check every two minutes to see if any of the pieces are dry. What can the team find out about the different fabrics from doing just this experiment? A. If the amount of water affects how long it takes the pieces of fabric to dry. B. If the type of fabric affects how long it takes the pieces of fabric to dry. C. If the amount of water and the amount of light affect how long it takes the pieces of fabric to dry. D. If the type of fabric, the amount of water , and the amount of light affect how long it takes the pieces of fabric to dry. 5. In what ways is a model similar to the thing it represents? A. A model must be identical to the thing it in every way. B. A model must be identical to the thing it represents in every way except that it can be made out of different materials. C. A model must be identical to the thing it represents in every way except that it can be a different size. D. A model can be different from the thing it represents in either its size or the materials it is made of. 6. Scientists share the results of their experiments with other scientists and expect them to try to find flaws in their data and experimental design. What is the purpose of doing this? A. It provides an easy way to find out which scientists are good at designing experiments. B. It makes it possible to award grant money for the best research projects. C. It helps scientists to improve their experiments and interpret their data accurately. D. It helps scientists to become better at spotting mistakes. 7. Which of these best describes the basis on which new scientific ideas are accepted or rejected? A. Popular support B. Historical support C. Carefully collected and analyzed data D. Moral and ethical beliefs . The best method to separate paper clips from a mixture of salt and pennies is: A. Filtering B. Evaporation C . Magnetism D Chromatography

4. A swimming team wants to select one of three fabrics for their new swimsuits Each fabric is made of a material. The team decides to do the following experiment: They cut the same size pieces from each fabric and wet each piece with the same amount of water. They hang the pieces in the sunlight and they check every two minutes to see if any of the pieces are dry. What can the team find out about the different fabrics from doing just this experiment? A. If the amount of water affects how long it takes the pieces of fabric to dry. B. If the type of fabric affects how long it takes the pieces of fabric to dry. C. If the amount of water and the amount of light affect how long it takes the pieces of fabric to dry. D. If the type of fabric, the amount of water , and the amount of light affect how long it takes the pieces of fabric to dry. 5. In what ways is a model similar to the thing it represents? A. A model must be identical to the thing it in every way. B. A model must be identical to the thing it represents in every way except that it can be made out of different materials. C. A model must be identical to the thing it represents in every way except that it can be a different size. D. A model can be different from the thing it represents in either its size or the materials it is made of. 6. Scientists share the results of their experiments with other scientists and expect them to try to find flaws in their data and experimental design. What is the purpose of doing this? A. It provides an easy way to find out which scientists are good at designing experiments. B. It makes it possible to award grant money for the best research projects. C. It helps scientists to improve their experiments and interpret their data accurately. D. It helps scientists to become better at spotting mistakes. 7. Which of these best describes the basis on which new scientific ideas are accepted or rejected? A. Popular support B. Historical support C. Carefully collected and analyzed data D. Moral and ethical beliefs . The best method to separate paper clips from a mixture of salt and pennies is: A. Filtering B. Evaporation C . Magnetism D Chromatography

Solução

expert verifiedVerification of experts
4.1282 Voting
avatar
FernandoMestre · Tutor por 5 anos

Responder

4.B <br />5.C <br />6.C <br />7.C <br />8.C

Explicação

## Step 1<br />For question 4, the experiment involves different types of fabric being exposed to the same conditions of water and sunlight. The time it takes for each fabric to dry is measured. This experiment is designed to test the effect of the type of fabric on the drying time, while keeping other variables constant.<br /><br />## Step 2<br />For question 5, a model is a representation of something else. It is not expected to be identical to the thing it represents, but rather to capture the essential features of the thing it represents. This can be achieved by using different materials or by changing the size of the model.<br /><br />## Step 3<br />For question 6, the peer review process in science involves other scientists reviewing each other's work. This is done to ensure the validity of the research and to improve the quality of science. By reviewing each other's work, scientists can find flaws in the data and experimental design, which can then be corrected.<br /><br />## Step 4<br />For question 7, the acceptance or rejection of new scientific ideas is based on empirical evidence. This means that the ideas must be supported by data that has been carefully collected and analyzed. This is the most reliable basis for accepting or rejecting scientific ideas.<br /><br />## Step 5<br />For question 8, the best method to separate paper clips from a mixture of salt and pennies is by using magnetism. This is because paper clips are made of a material that is attracted to magnets, while salt and pennies are not.
Clique para avaliar: