A clean is a precise value of a bodily quantity. - ANS-Unit of degree
A clean is a generalized rule used to give an explanation for observations of the natural global. -
ANS-Law
A blank is a property of an item that may be measured. - ANS-Physical amount
A blank is a representation of some thing that is regularly too tough (or impossible) to show
without delay. - ANS-Model
A clean is an reason for patterns in nature this is supported by using medical proof and verified
multiple times through various corporations of researchers. - ANS-Theory
A top hypothesis is both _________ and ________. - ANS-workable, testable
As you growth the stress on a gasoline, the extent of this gas decreases. This is what type of
proportion? - ANS-Inverse proportion
Besides factors which can be precise to the situation, the elements contributing to uncertainty in
a measurement encompass: - ANS-Limitations of the measuring advice and the skill of the
character making the size
Classical physics is an first rate approximation so long as three things are proper. What are
those things? - ANS-- Matter have to be moving at speeds less than about 1% of the rate of
mild.
- The items treated ought to be large enough to be visible with a microscope.
- Only weak gravitational fields, including the sphere generated by means of the Earth, can be
worried
Convert the following numbers with a prefix to the unit with out a prefix. - ANS-1 km = 1000 m
1ms = zero.001 s
1dg = 0.1 g
1 hs = a hundred s
1 cm = 0.01 m
Convert the following numbers with out a prefix to one that has a prefix.
1. Five,000,000 m = ?
2. 07 s = ?
Three. 400 g = ?
Four. 2 m = ?
Five. 6,000 s = ? - ANS-1) five,000,000/one thousand= five,000/a thousand =5Mm
2) 7 cs
3) 400/100 = 4hg
four) 2/1 = 2dm
5) 6000/a thousand = 6ks
Convert the subsequent values into medical notation.
0115 m = ?
5s=?
000485 g = ?
, 920,000 s = ?
00743 m = ? - ANS-1.15 X 10^-2m,
2.Fifty five X 10 s,
4.Eighty five X 10^-four g,
nine.2 X 10^5 s,
7.43 X 10^-three m
Convert the following values that are in clinical notation to numbers without clinical notation.
1. 35 X 103 g = ?
2. 12 X 10-2 s = ?
Three. Eighty one X 102 m = ?
4. 33 X 10-4 g = ?
Five. 35 X 105 s = ? - ANS-1. 3500 g
2. Zero.12 s
three. 8100 m
four. Zero.1/3 g
five. 3500000 s
Current definition of the kilogram? - ANS-The kilogram is now described in terms of the second,
the meter, and Planck's constant (h).
Current definition of the meter? - ANS-The meter is described as the gap that light travels in a
vacuum in 1/299,792,458 of a second.
Current definition of the second one? - ANS-time it takes cesium atoms to vibrate
nine,192,631,770 times.
Distance, Mass, Time - ANS-Quantities
How many dm are identical to seventy five m? - ANS-seventy five x 10/1 = 750dm
How many g are identical to zero.0278 kg? - ANS-0.0278 x 1000/1 = 27.8g
How many mm are same to 0.0379 m? - ANS-zero.0379 x one thousand/1 =37.9mm
How many Ms are identical to nine,0.5,000 cs? - ANS-9045000/100 = 90450
90450/ 1000000 = zero.09045
If you are touring at fifty six.Four kph, how rapid are you're touring in m/s? - ANS-56.4 x a
thousand/1 = 56,400
56400/60 = 940
940/60 = 15.7 m/s
If you are traveling at 734 m/s, how rapid are you are journeying in km/s? - ANS-734 x 1/1000 =
0.734 km/s
In an experiment, you drop a ball and time how lengthy it takes for it to fall to the ground. You
then drop the ball again from a better peak and time it again. You continue this sample for
numerous extra trials, every time you maintain growing the height and timing how long it takes
to fall. In every trial, you operate the identical ball. For this test, fit up the measurement inside
the left column to the type of variable it's far from the list inside the proper column. - ANS-Height
of drop = Independent variable
Mass of ball = Controlled variable
Time of fall = Dependent variable
In an test, you show that as you growth the force appearing on an object, the acceleration of the
item also will increase. This is an instance of which kind of percentage? - ANS-Direct proportion