Science Mid-Term Studying Quiz

Descripción

Science Mid-Term Studying Quiz
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Test por jujubeeamorde, actualizado hace más de 1 año
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Creado por jujubeeamorde hace más de 8 años
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Resumen del Recurso

Pregunta 1

Pregunta
What devices are used to measure mass, volume, density, and weight?
Respuesta
  • Triple-Beam balance & scale
  • mass divided by weight
  • graduated cylinder
  • beaker
  • volume over mass
  • mass over volume

Pregunta 2

Pregunta
For the pendulum experiment what were the Independent and dependent variables?
Respuesta
  • Mass, period
  • Weight, size
  • Time, force

Pregunta 3

Pregunta
Scientific theory is what scientists predict to happen in the future.
Respuesta
  • True
  • False

Pregunta 4

Pregunta
How many significant figures are in 0.57?
Respuesta
  • 2
  • 3
  • 4
  • 1

Pregunta 5

Pregunta
Using sig figs, how would you solve 26.9 divided by 3?
Respuesta
  • .9
  • 9
  • 900
  • .009

Pregunta 6

Pregunta
Percent error is: predicted-true value ------------------------------ true value
Respuesta
  • True
  • False

Pregunta 7

Pregunta
Protons add [blank_start]one[blank_end] amu to the atom. Neutrons add [blank_start]one[blank_end] amu to the atom. Electrons add [blank_start]no[blank_end] mass to the overall atom.
Respuesta
  • one
  • one
  • no

Pregunta 8

Pregunta
Properties of metalloids include-
Respuesta
  • brittle
  • somewhat reactive
  • hard
  • soft
  • unbreakable
  • luster

Pregunta 9

Pregunta
What is the last part of the brain to develop?
Respuesta
  • frontal cortex
  • pre-frontel cortex
  • dark matter
  • white matter

Pregunta 10

Pregunta
Three methods used to avoid animal-testing?
Respuesta
  • in vitro testing
  • computer modeling
  • volunteer
  • insect testing

Pregunta 11

Pregunta
solutions contain a solvent dissolved in a solute
Respuesta
  • True
  • False

Pregunta 12

Pregunta
molecular compounds in water conduct electric current
Respuesta
  • True
  • False

Pregunta 13

Pregunta
a characteristic property of a solution is that it can scatter light
Respuesta
  • True
  • False

Pregunta 14

Pregunta
brass is a solid dissolved in a solid
Respuesta
  • True
  • False

Pregunta 15

Pregunta
shows the ratio of atoms in a compound
Respuesta
  • chemical formula
  • element
  • mixture

Pregunta 16

Pregunta
Dalton thought the atom was a condense sphere
Respuesta
  • True
  • False

Pregunta 17

Pregunta
...thought the atom was like a watermelon (scattered electrons)
Respuesta
  • thomson
  • bohr
  • rutherford
  • dalton

Pregunta 18

Pregunta
Rutherford said the atom was like....
Respuesta
  • empty space with a positive core
  • a cloud of electrons
  • electrons surrounding a nucleus of protons and neutrons

Pregunta 19

Pregunta
Bohr said the atom had a nucleus filled with protons and neutrons with electrons orbiting around the entire nucleus
Respuesta
  • True
  • False
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