Levers And Moments

Question 1

Rule abput lenght of lever (real long 😏)

Answer 1

The longer the lever and the closer the pivot is to the load the less effort needed to lift the load
(im gonna bust a load if this stops)

Question 2

Moment triangle

Answer 2

M
F | D

Question 3

Balanced equilibrium is when the

Answer 3

Clockwise moment = anticlockwise moment

Question 4

What do gears systems change

Answer 4

Speed and direction

Question 5

Difference between gears and wheels

Answer 5

Gears have teeth wheels dont

Question 6

If a large gear has 16 teeth and turns once clockwise, how many times will a gear with 8 teeth turn and in what direction?

Answer 6

The smaller gear would turn twice in anticlockwise direction
(16 divided by 8 = 2. 1 times 2 = 2)

Question 7

What does the effort equal (pulleys btw)

Answer 7

Load divided by number of ropes

Question 8

If an object is pulled up by 10cm how do you find out how much you pulled down?

Answer 8

10cm multiplied by number of ropes

Question 9

If a load weighed 400N and the pulley had 4 ropes, how much effort is needed to lift the load?

Answer 9

100N
(400 ➗ no. of ropes)