#1
Which of the following is a unit of work?
#2
Which of the following is a form of potential energy?
#3
What is the relationship between work and energy?
#4
What is the unit of measurement for power?
#5
What is the SI unit of work?
#6
What is the work done when a force of 20 Newtons is exerted on an object over a distance of 5 meters?
#7
Which of the following is an example of a second-class lever?
#8
What is the formula for calculating kinetic energy?
#9
Which of the following is an example of a third-class lever?
#10
Which of the following statements about simple machines is true?
#11
A machine lifts a load of 500 N with an effort of 100 N. What is the mechanical advantage of the machine?
#12
In the absence of air resistance, what happens to the mechanical energy of a swinging pendulum?
#13
What is the efficiency of a machine that does 150 J of work output while 200 J of work input is applied to it?
#14
What is the law of conservation of energy?
#15