A) 60 correct answers Chris walks forward thirty steps and then walks thirty steps
backwards. How many steps has Chris traveled in terms of his total distance?
C) 196 correct answers A boy named Daniel born in the Northern Hemisphere stands
on a weighing scale. Daniel weighs 20 KG. The scale readout is displayed in Newtons.
What is the readout for Daniel?
B) Output force is 600% correct answers A simple machine has a mechanical
advantage of 6. This means that:
D) < 100% efficiency correct answers A simple machine always has:
C) Mechanical advantage correct answers Increasing the slant of an inclined plane
increases its:
B) Force/ Area correct answers Pressure =
A) Force / Displacement correct answers Work Done =
A) 2.2 N correct answers A 1.0 KG book has a sliding coefficient of friction of 0.22.
What horizontal force must be applied to this book to make it slide at a constant speed?
B) "For every action, there is an equal but opposite reaction" correct answers Newton's
Third Law states:
A) 7, 840 N correct answers If the mass of a transportation vehicle that has been in
service for 20 years is 800 KG, then its weight equals
A) 2.0 KG correct answers A brick has a sliding coefficient of friction of .28. A 5.5 N
force must be applied to the book to make it slide at a constant speed. What is the mass
of the brick?
D)Law of Conservation of Momentum correct answers Which law states that
momentum is neither destroyed nor created:
C) 35.3 J correct answers If a small, wooden object is moving at a rate of 8.4 m/s and
weighs 1.0 KG, how much kinetic energy does it have?
C) 100 J correct answers A 50 N vase is raised 2 m. What is the work done?
D) 5 correct answers If a lever has a 250 N resistance and 50 N effort, its mechanical
advantage is