Semester 1 Physics Review

  1. Differentiate between Speed and Velocity.
  1. Jose’s truck is stalled on a smooth flat road.

If a force of 200 Newtons is used to push the truck along the road, at what rate of acceleration will the truck move in m/sec2?

  1. 8000 m/sec2
  2. 2 m/sec2
  3. 0.5 m/sec2
  4. 5 m/sec2
  1. How do icebergs near the polar icecap demonstrate Newton’s Law of Inertia?
  2. The iceberg will continue to move until it cracks from the pressure of the atmosphere.
  3. The iceberg will continue to move until it melts into the ocean water from the heat of the sun.
  4. The iceberg will continue to move until it returns to its original location.
  5. The iceberg will continue to move until it crashes into or slides against another iceberg.
  6. The picture to the right shows sand dune in the desert, sand dunes change over time. The changes in the sand dunes occurred as the wind moves sand across the desert. Which type of energy is MOSTLY responsible for moving the sand?
  7. Kinetic energy
  8. Radiant energy
  9. Potential energy
  10. Chemical energy
  1. Megan and Jaime made a straw-balloon rocket, shown in the diagram below.

They inflated the balloon, held the string tight and level, and watched the straw rocket move forward. Use Newton’s 3rd Law (Action-Reaction) to explain why the rocket moves formard.

  1. The string was too smooth
  2. The straw was taped to the top of the balloon
  3. The air rushing out of the balloon
  4. The air expanding the balloon’s volume
  1. Which of the following vector diagrams shows two forces that are balanced?

Describe how you know that the forces in the vector diagram you selected are balanced.

  1. Work = Force X Distance

Juan applies a force of 300 Newton’s to the first box for one minute, but the box did not move. He applies the same amount of force to a second box and the box moves 6 meters. What can you conclude about the work being done?

  1. 1800 Joules of work was done on box 1 and 0 Joules of work was done on box 2.
  2. 0 Joules of work was done on box 1 and 1800 Joules of work was done on box 2.
  3. 50 Joules of work was done on box 1 and 200 Joules of work was done on box 2.
  4. 300 Joules of work was done on box 1 and 1800 Joules of work was done in box 2.
  1. The graph below shows a bikes distance along a road at any given time what was the average speed of the bike?
  1. 0 km/hr
  2. 14 km/hr
  3. 2 km/hr
  4. 1 km/hr

Use the information on the graph below to answer #9.

  1. The graph shows the distance a bird flies over its migration period. Match the following statement with the section of the graph it describes.

_____ The bird flew slowest during this time interval.

_____ The bird stopped at a lake during this time interval.

_____ The bird flew the fastest during this time interval.