11What is the SI unit of electric current?
12What is the SI unit of temperature?
13What is the SI unit for the amount of substance?
14What is the SI unit of luminous intensity?
15What is the approximate acceleration due to gravity on Earth’s surface?
16What is the formula for kinetic energy of a moving object?
17What is the formula for gravitational potential energy?
18A see-saw is an example of which simple machine?
19A screw is essentially an inclined plane wrapped around what shape?
20A wedge can be thought of as a combination of two of which simple machine?
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