Random 6
A what is a machine designed to overcome weight and make lifting easier?
A. pulley
B. wave
C. wheel and axel
A. pulley
Balanced or Unbalanced:
prevent work from being done
Balanced
Sound can be an example of what energy in a collision?
A. converted
B. moving
C. transferred
A. converted
Balanced or Unbalanced:
allow work to be done
Unbalanced
A what gives a building its shape?
A. frame
B. foundation
C. fulcrum
A. frame
Balanced or Unbalanced:
a chair resting on the floor
Balanced
Energy transfers in a collision can cause the what of objects to change?
A. mass
B. speed
C. weight
B. speed
Balanced or Unbalanced:
a person pushing a lawnmower
Unbalanced
Wax can be used as a what to minimize friction?
A. lodestone
B. lubricant
C. machine
B. lubricant