grade 9 mini test

orthographic drawings have a

• front side and top view

• bottom side and front view

• top and bottom view

• side and front view

wavy lines indicate where a part is

the picture on the left is an ---------- load whereas picture on the right is an ---------load

• even and uneven

• uneven and even

• static and dynamic

• even and dynamic

scratch and indentation are examples of

mass is ------------- whereas density is -----------

• rebound and strength

• flexible stiffness

• resistance solid

• corrosion solid

iron water and oxygen is an example of

• chemicals

• rust

• carbonated water

• none of the answers

this is an example of

• hydraulics

• pneumatics

• gears

• machinery

if a load of a lever is 100 newtons and the force you apply is 20 newtons, what is your mechanical advantage?

• 120 N
• 5 N
• 2000 N
• 80 N

Gears are sometimes called

• COGS
• WHEELS 

MOST gears are

• Wheels
• Cylinders
• Both, wheels & cylinders
• I don't know