Semester EXam review

How many millimeters are in one meter?

• 100

• 1000

• 10

• 10000

How would 4500 be written in scientific notation?

• .45 x 10 ^-1

• 4.5 x 10 ^ -3

• 4.5 x 10 ^ 3

• .45 x 10 ^3

How would you write .0364 in scientific notation?

• 3.64 x 10 ^-2

• 3.64 x 10 ^2

• .364 x 10 ^ -1

• 36.4 x 10 ^ -2

Which of these numbers is the same as 4.59 x 10 ^-4?

• 45900

• 4590

• .00459

• .000459

Convert 40 oz to grams

• 1134

• 3.39

• 202.12

• 400

Coulomb's law tells us that the force is ______________ and repels when charges are the same and distance is close

• negative

• positive

• zero

• nuclear

Tags

NGSS.HS-PS2-4

In the video about Charles' law, when the temperature decreased, the volume __________ (think about the balloons.)

• decreased

• increased

• zeroed out

• none of the above

In the video about Boyle's law, as pressure decreased, the volume ________________ (think about the peep).

• decreased

• increased

• zeroed out

• none of the above

If Boron is in group 3, period 2, how many valence electrons does it have?

• 3

• 2

• 5

• not enough information

If Boron is in group 3, period 2, how many energy levels does it have?

• 3

• 2

• 5

• not enough information