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Cambridge OL
General physics - ch. 1: Measurements
Chapter 1: Measurements 1-June 09 P3
An engineering machine has a piston which is going up and down approximately 75 times
per minute.
Describe carefully how a stopwatch may be used to find accurately the time for one up-and-
down cycle of the piston.
r. Wa

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared

If forces acting on an object are unbalanced. true or false

One number is said to be an "order of magnitude" larger than another number if choose one: a. it is 10 times larger. b. it is 5 times larger. c. it is 3 times larger. d. it is 100 times larger. e. it is 2 times larger.