Lab Safety
Before beginning a lab, students with long hair should —
tie their hair back.
wings of butterflies and bats are considered...
Analogous Structures
The loudness of a sound wave is determined by the____of the wave.
Amplitude
What is the formula mass of sodium chloride, NaCl?
58 g/mol
Force times Distance
Work
is not permitted in the lab.
Eating, Drinking, Horseplay, Open Toed Shoes
The environment will determine the favorable traits that will be passed on to the offspring. This is called?
Natural Selection.
How is wavelength measured?
Crest to crest or trough to trough
What is the molar mass of KBr?
119 g/mol
How much work is being done with 200 N of force over 426 meters?
85,200 J
Despite safety goggles, she could feel the solution running into her eyes. Which laboratory safety item should the student use?
The Eye Wash station.
Genetic changes over time in an entire population.
Evolution.
Sound waves are examples of which type of wave?
Transverse or Longitudinal?
Longitudinal
How many Carbon atoms are present in 1.00 mole of methane, CH4?
6.02 X 1023 atoms
If 68 W of power is produced in 18 seconds, how much work is done?
1224 J
First thing students should do when anything goes wrong in the lab.
Alert the teacher
There are several species of salamanders that have adapted for life in underground caves. These salamanders usually have small, non-functional eyes. These are called...
Vestigial Structures.
The bending of a wave when it crosses from one medium to another is called:
Refraction
What is the empirical formula for glucose, C6H12O6?
CH2O
If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?
17 m
Anytime students are conducting an experiment with acidic chemicals, students need to wear...
safety goggles, gloves, and apron (PPE)
This occurs over a much shorter period of time than natural selection.
Selective breeding or Artifical selection
The bending of waves around an opaque obstacle is called:
Diffraction
4 Sb + 3 O2→ 2Sb2O3
How many moles of Sb2O3 will be formed when you have 20.0 moles of oxygen gas?
13.3 moles
Gravitational potential energy depends on the ________ and ________ of the object.
mass and height