First Test Review

1
First Test Review

• Physics 1010
• February 7, 2005

2

• Larry, Moe and Curley each have a mass of 100 kg.
• Larry says My weight is 100 kg.
• Moe says My weight is 10 m/s2
• Curley says My weight is 1000 N
• Which one is correct?

3

• A bowling ball and a ping-pong ball are dropped
  from the roof of Richardson Towers. Which
  statement is correct?
• A) The gravitational force on each ball is the
  same
• B) The acceleration of each ball is the same.
• C) both A and B

4

• Larry, Moe and Curley are climbing ropes in gym
  class. At one particular instant, Larry is at
  rest half-way up the rope, Moe is sliding down
  the rope at constant speed, and Curley is
  accelerating up the rope at 2 m/s2 Which rope
  has the greatest tension?

5

• Larry is at rest half-way up a rope.
• What is the reaction force to Larrys pulling on
  the rope?
• What is the reaction force to Larrys weight?
• What is the reaction force to the rope pulling on
  the ceiling of the gym.

6

• As an object falls freely downward, its
• Acceleration increases
• Velocity increases
• Both of these
• Neither of these

7

• A kilogram is a measure of an objects
• A) weight
• B) mass
• C) gravity
• D) force

8

• The force exerted on the tires of a car to
  directly accelerate it along a road is exerted by
  the
• Air
• Tires
• Road
• Engine
• None of these

9

• Disregarding air resistance, objects fall at
  constant
• A) acceleration
• B) velocity
• C) distances each successive second
• D) speed

10

• A car accelerates from rest at 2 meters per
  second per second. What is its speed three
  seconds after the car starts moving?
• A) 2 m/s
• B) 3 m/s
• C) 4 m/s
• D) 6 m/s
• E) none of these