If you are using a screwdriver to pry open a paint can, you are using what type of simple machine?
question 1 options:
pulley
lever
screw
wheel and axle what is done whenever a force moves an object through a distance?
question 2 options:
force
load
energy
work
what simple machines would move or turn an object?
question 3 options:
wheel and axle
lever
screw
wedge a see-saw is an example of what type of lever?
question 4 options:
first class
second class
third class
fourth class a ramp is an example of an inclined plane. a man in a wheelchair was trying to get up the ramp, but he was having trouble because it was too steep. what can you do to make the ramp more useful?
question 5 options:
shorten the ramp
decrease the height of the ramp
remove the ramp and put in stairs
lengthen the ramp