DT

Question 1

Types of motion

Answer 1

Reciprocating
Oscillating
Linear
Rotary

Question 2

1st class lever + example

Answer 2

Effort - fulcrum - load

E.g: crane

Question 3

2nd class lever

Answer 3

Fulcrum - load - effort

E.g: wheelbarrow

Question 4

Class three lever

Answer 4

Load - effort - fulcrum

E.g: fishing rod

Question 5

Cycle of elliptical cam starting at max displacement (0 degrees)

Answer 5

Falls and rises twice with no dwell through one revolution of cam
Displacement diagram = fall, rise, fall rise

Question 6

Mechanical advantage

Answer 6

Output force / input force or length a / length b

/ = divide

Question 7

Ohms law

Answer 7

V= I x R

Question 8

Impact of small to large pulley

Answer 8

Slower output speed

Increased torque

Question 9

Impact of large to small pulley

Answer 9

Faster output speed

Decreased torque

Question 10

What is the max displacement

Answer 10

Centre to furthest bit - centre to shortest bit = max displacement

Question 11

Tension in beam

Answer 11

Arrows pointing away from centre

Question 12

Compression in beam

Answer 12

Arrows pointing towards centre of beam

Question 13

Resistor diagram

Answer 13

Rectangle

Question 14

Cantilever beam + examples

Answer 14

Beam attached to solid surface
Traffic light
Crane

Question 15

Overhanging beam

Answer 15

Two supports, one at centre + one at the end

E.g: diving board