SIMPLE MACHINES TAKS QUESTIONS
JULY 2004 – 11:
10 What is the efficiency of an air conditioner if there is a work input of 320 J and a work
output of 80 J?
F 4%
G* 25%
H 240%
J 400%
SPRING 2003 – 11:
48 The diagram shows an electric motor lifting a 6 N block a distance of 3 m. The total
amount of electrical energy used by the motor is 30 J. How much energy does the motor
convert to heat?
F9J
G* 12 J
H 18 J
J 21 J
APRIL 2004 – 11:
(46) Which lever arrangement requires the least effort force to raise a 500 N resistance?
Answer: F
APRIL 2006 – 11:
22 Which configuration of pulleys and belts shown below will result in the fastest
rotation of Spindle 2?
Answer: H
APRIL 2006 – 11:
29 Which of these represents a properly balanced system? Answer C
APRIL 2006 – 11:
50 Which lever requires the least effort to lift the load? Answer: F