Mechanics

Description

Quiz on Mechanics, created by Lewisp on 04/01/2014.
Lewisp
Quiz by Lewisp, updated more than 1 year ago
Lewisp
Created by Lewisp almost 11 years ago
27
1

Resource summary

Question 1

Question
what is a vector?
Answer
  • A physical quantity that has both magnitude and direction.
  • A physical quantity that only has magnitude.

Question 2

Question
A force can be split into two components.
Answer
  • True
  • False

Question 3

Question
what does the gradient on a displacement time graph show?
Answer
  • Velocity
  • Acceleration

Question 4

Question
what are the conditions that the SUVAT equations can be used in?
Answer
  • constant velocity
  • constant acceleration
  • ignore air resistance
  • The object is in freefall
  • The acceleration is positive

Question 5

Question
what is the formula for work done?
Answer
  • w=fd
  • w=mgh

Question 6

Question
The sum of forces and moments of an object in equilibrium equals...
Answer
  • 0
  • 10
  • 46
  • 94

Question 7

Question
what is the definition of centre of gravity?
Answer
  • The gravitational force on a body
  • The point at which the entire weight of an object can be considered to act
  • The centre of the gravitational field

Question 8

Question
pressure is the same as weight
Answer
  • True
  • False

Question 9

Question
braking distance increases constantly
Answer
  • True
  • False

Question 10

Question
power is ...
Answer
  • the rate of work done.
  • work done x time
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