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Flashcards in 9 Deck (9)
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1

Resultant force is?

The overall or combination of forces on an object.

2

If there is no overall force on an object?

The object stays at the same velocity.

3

If the force on an object is greater against motion than with the motion then..

The object decelerates.

4

In a diagram of arrows coming off an object showing forces, to find the resultant force you:

- add up all the arrows tip to tail.
- draw line from object to where the end of the lines are.
- measure the distance and that’s the vector of the force.

5

Moment =

Force x distance (perpendicular to the force)

6

What are the units of moment?

Nm (newton metres)

And clockwise or anticlockwise.

7

If a small cog is driving a larger one it has:

- less speed
- more moment.

8

If a larger cog is driving a smaller one it has:

- more speed
- less moment.

9

Why use pedals?

As you can give the cog more moment by using teh pedal to increase the distance, so force x distance, the more distance the more moment.