Lewisp
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Quiz on Mechanics, created by Lewisp on 04/01/2014.

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Mechanics

Question 1 of 10

1

what is a vector?

Select one of the following:

  • A physical quantity that has both magnitude and direction.

  • A physical quantity that only has magnitude.

Explanation

Question 2 of 10

1

A force can be split into two components.

Select one of the following:

  • True
  • False

Explanation

Question 3 of 10

1

what does the gradient on a displacement time graph show?

Select one or more of the following:

  • Velocity

  • Acceleration

Explanation

Question 4 of 10

1

what are the conditions that the SUVAT equations can be used in?

Select one or more of the following:

  • constant velocity

  • constant acceleration

  • ignore air resistance

  • The object is in freefall

  • The acceleration is positive

Explanation

Question 5 of 10

1

what is the formula for work done?

Select one of the following:

  • w=fd

  • w=mgh

Explanation

Question 6 of 10

1

The sum of forces and moments of an object in equilibrium equals...

Select one of the following:

  • 0

  • 10

  • 46

  • 94

Explanation

Question 7 of 10

1

what is the definition of centre of gravity?

Select one of the following:

  • 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

Explanation

Question 8 of 10

1

pressure is the same as weight

Select one of the following:

  • True
  • False

Explanation

Question 9 of 10

1

braking distance increases constantly

Select one of the following:

  • True
  • False

Explanation

Question 10 of 10

1

power is ...

Select one of the following:

  • the rate of work done.

  • work done x time

Explanation

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