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MCAT Physics - Linear Momentum Quiz

Description

A-Level MCAT Quiz on MCAT Physics - Linear Momentum Quiz, created by Jen Molte on 21/05/2014.
Jen Molte
Quiz by Jen Molte, updated more than 1 year ago
Jen Molte
Created by Jen Molte about 11 years ago
140
2
1 2 3 4 5 (1)

Resource summary

Question 1

Question
A particle of mass 1 kg is located at (0,0) and a particle of mass 2 kg is located at (3,0). What is the location of the center of mass of this system?
Answer
  • (0,0)
  • (1,0)
  • (1.5,0)
  • (2,0)

Question 2

Question
The net external force on a system of particles is zero. What is the velocity of the center of mass of the system?
Answer
  • 0
  • Constant
  • Constantly increasing
  • Constantly decreasing

Question 3

Question
The net external force on a system of particles is zero. What is the velocity of each particle in the system?
Answer
  • 0
  • Constant
  • Constantly increasing
  • Not enough information

Question 4

Question
Four particles of equal mass are at points (0,0), (2,0), (2,2) and (0,2). Where is the center of mass of the system?
Answer
  • (1,0)
  • (1,1)
  • (2,0)
  • (2,2)

Question 5

Question
Where is the center of mass of a single particle?
Answer
  • The point halfway between the particle and the origin
  • The origin
  • The position of the particle
  • Undefined

Question 6

Question
A net force of 8 N is applied to a system containing four masses, each of 1kg. What is the resultant acceleration of the center of mass of the system?
Answer
  • 2 m/s
  • 8 m/s
  • 12 m/s
  • 32 m/s

Question 7

Question
What is the definition of impulse?
Answer
  • Force per unit time
  • Force per unit distance
  • Force over a distance
  • Force over a time

Question 8

Question
A bat exerts a force on a ball of 100 N for a period of .1 seconds. What is the impulse provided by the bat?
Answer
  • 100
  • 10
  • 1
  • 1000

Question 9

Question
A net impulse on an object causes
Answer
  • A change in its kinetic energy
  • A change in its speed
  • A change in its momentum
  • A change in its mass

Question 10

Question
A ball of mass 2 kg bounces against a wall with a velocity of 6 m/s and rebounds with the same velocity. What is the impulse provided by the wall?
Answer
  • 12
  • 24
  • 3
  • 8

Question 11

Question
What are the units of impulse, in terms of fundamental units?
Answer
  • N-s
  • kg-m/s
  • J/s
  • kg-m
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