Grade 8 revision

Which of these words describes a motion?

• Rotund

• Rotary

• Rotisserie

• Rota

What is the output motion from a cam?

• Vertical

• Level

• Reciprocating

• Linear

Which of the following are types of cam? Select all which apply

• Eccentric

• offset

• box

• worm

• snail

What is this type of mechanism called?

• gear train

• gear chain

• gear box

• bevel gears

If the drive gear has 100 teeth and the driven gear has 10 teeth, how much faster or slower will the driven gear spin?

• 10 times slower

• 100 times slower

• 10 times faster

• 100 times faster

Levers are sometimes joined together with ------- to change the direction of motion

(a)  

Name another energy source that can be used to power mechanisms (machines), electricity, wind and (a)  

Where would you find a cam shaft?

• food mixer

• washing machine

• car

• pillar drill

What mechanism is used in this hand whisk?

• worm gear

• levers and linkages

• crown and pinion gears

• bevel gears

Which mechanism is shown in this close up of a crane

• box Cam

• Worm gear

• Pulley system

• Gear Train

• Other