IB Physics Multiple Choice 1 All Units

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  • Created by: Milly
  • Created on: 11-04-13 20:54

1. Stephen pushes two boxes P and Q, that stay in contact, along a rough table, with a force F or 30N. Box P has a mass of 2.0kg and box Q has a mass of 4.0kg. Both boxes move with a constant speed. What is the resultant force of Q?

  • 0N
  • 30N
  • 5N
  • 15N
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2. Which of the following gives the ratio of thermal energy transferred to object P divided by thermal energy transferred to object Q?

  • (MqCp)/(MpCq)
  • (MpCq)/(MqCp)
  • (MpCp)/(MqCq)
  • (MpCp)/(MqCq)

3. The current in a resistor is measured as 2.00A± 0.02A. Which of the following correctly identifies the absolute uncertainty and the percentage uncertainty in the current?

  • ±0.02A and ±1%
  • ±0.01A and ±0.5%
  • ±0.02A and 0.01%
  • ±0.01A and ±0.005%

4. For two objects to be in thermal equilibrium they must

  • radiate equal amounts of power
  • be at the same temperature
  • have the same thermal capacity
  • be in contact with each other

5. Which of the following lists only two vector quantities?

  • mass, energy, work
  • momentum, energy, displacement
  • momentum, work, speed
  • weight, force, acceleration
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