1 / 11

The Man’s PSSA Practice

The Man’s PSSA Practice. What change could be made in the setup in diagram 1 to increase the amount of force necessary to move the block of wood? Add mass or weight to the block, roughen the surface of the table or the bottom of the block, increase the surface area of the wood, etc.

maura
Download Presentation

The Man’s PSSA Practice

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Man’s PSSA Practice

  2. What change could be made in the setup in diagram 1 to increase the amount of force necessary to move the block of wood? Add mass or weight to the block, roughen the surface of the table or the bottom of the block, increase the surface area of the wood, etc.

  3. Explain why round pencils in diagram 2 decrease the amount of force necessary to move the block of wood. Pencils reduce friction, the pencils roll instead of slide, pencils serve as wheels.

  4. Which diagram best represents the correct reading for the same spring scale being used to weigh a 200 g mass? Choice 2

  5. Which satellite would experience the strongest pull of Earth’s gravity? State the scientific principle that explains your answer. A, b/c as it’s closer so the gravitational pull is stronger; b/c as distance decreases, the gravitational pull is stronger.

  6. Motion for 500 Predict what might happen to satellite B if the forces acting on it become unbalanced. It will move into a new orbit. It will crash into Earth. It will escape from its orbit.

  7. A student goes skateboarding a few times a week. The student notices that she can go faster while skating on some level surfaces than on others. She hypothesizes that speed has something to do with the surface she is skating on. The student wants to design an experiment to test this hypothesis. a Identify the independent (manipulated) variable in the experiment. Surface or surface material b Identify the dependent (responding) variable in the experiment. Speed or skateboard speed

  8. A student goes skateboarding a few times a week. The student notices that she can go faster while skating on some level surfaces than on others. She hypothesizes that speed has something to do with the surface she is skating on. The student wants to design an experiment to test this hypothesis. Identify two factors that will need to be held constant in the experiment. Same skateboard Same person Same wheels Air temperature Level surface Wind speed Wind direction Equal push Equal distance Placement of person on the skateboard

  9. What is the relationship between the mass of the planets and the relative strength of their gravitational pull? As mass increases, the gravitational pull/force increases OR it’s a direct relationship

  10. Which 3 planets have less gravitational pull than Earth? Mercury, Mars, Pluto

More Related