A) 60 - correct answer ✔✔ 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 answer ✔✔ 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 answer ✔✔ A simple machine has a mechanical advantage of
6. This means that:
D) < 100% efficiency - correct answer ✔✔ A simple machine always has:
C) Mechanical advantage - correct answer ✔✔ Increasing the slant of an inclined plane
increases its:
B) Force/ Area - correct answer ✔✔ Pressure =
A) Force / Displacement - correct answer ✔✔ Work Done =
A) 2.2 N - correct answer ✔✔ 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 answer ✔✔ Newton's
Third Law states:
A) 7, 840 N - correct answer ✔✔ If the mass of a transportation vehicle that has been in service
for 20 years is 800 KG, then its weight equals