Carbohydrates
What 3 elements make up carbohydrates?
Carbon
Oxygen
Hydrogen
In an experiment, the group that you keep the same is the _________.
Control Group!
What two scientists were involved in scientific investigation and developing the scientific method are?
Isaac Newton
Galileo Galilei
What is the push or pull on an object that can cause it to change speed, direction, or position?
Force
What is energy?
Energy has the ability to do work!
What essential nutrient helps our bones to heal and our muscles to grow (found in fish and meats)
Proteins!
What is a hypothesis?
An educated guess!
Where was Galileo Galilei born?
Pisa, Italy
What is work? What is the formula for work?
Work is an amount of force moving a certain distance. Formula is W= F x d.
What type of potential energy is found in a compressed spring?
Elastic or Strain Potential Energy
What are two examples of monosaccharides?
Galactose
Glucose
Fructose
What are the steps of the scientific method?
1.) Observation
2.) Forming a hypothesis
3.) Conducting an experiment
4.) Collecting results/data
5.) Drawing conclusions
Where was Isaac Newton born?
England
What is the formula for force?
Force= mass x acceleration
F= m x a
What type of potential energy is found in food? Where else can you find this type of potential energy?
Chemical Potential Energy
Wood, Coal, Batteries
Can humans use cellulose for food energy at all? Why or why not?
Humans cannot use cellulose for food energy at all because we do not have enzyme required to break the bonds between glucose molecules!
Colby wants to learn more about the feeding habits of ants.
What steps should Colby take to best study the feeding patterns of ants?
a. form a hypothesis, conduct an experiment, record data, make a conclusion
b. conduct an experiment, form a hypothesis, make a conclusion, record data
c. form a hypothesis, record data, conduct an experiment, make a conclusion
d. record data, form a hypothesis, make a conclusion, conduct an experiment
a. form a hypothesis, conduct an experiment, record data, make a conclusion
Galileo showed how two lead balls fall at the same rate even if one is larger than the other. He performed a famous experiment where he is said to have dropped two cannon balls off the Leaning Tower of Pisa. He found that, even though the two cannon balls were different weights, they landed on the ground at exactly the same time.
Find the Force: An object that has a mass of 120 kg accelerates at 40m/s . What force is required to get this acceleration?
Force= 4800 N
A snowboarder sitting at the top of a hill that is 10 meters high has what type of energy?
Gravitational Potential Energy
What is better for energy: monosaccharides or polysaccharides? Why?
If we ate only simple sugars, our bodies would use up all of the energy in these molecules too quickly and we would get tired.Polysaccharides provide “storage” for the energy molecules to use later
Victoria grows the same bacteria in 20 petri dishes. She places 10 of the dishes in a container with a normal atmosphere. The remaining dishes she places in a container in which the oxygen level is double the normal level. She labels the first group "A" and the second group "B." Which statement best describes the groups?
a.) Group A is the control group; Group B is the experimental group.
b.) Group A is the experimental group; Group B is the control group.
c.) Group A is the hypothesis; Group B is the theory.
d.) Group A is the variable; Group B is the observation.
e.) Group A is the theoretical group; Group B is the hypothetical group.
a.) Group A is the control group; Group B is the experimental group.
Describe Isaac Newton's famous law. What did he confirm?
Isaac Newton discovered the law of gravity and laws of motion. Newton confirmed Galileo's experiments and showed with mathematics just why two objects will reach the ground at the asme time, even if one is heavier than the other.
Find Work: How much work is required to lift a 690 N object 12 m above the ground? What is the unit for work?
Work = 8280 J
Joules
Which form of energy comes for the splitting of the nucleus of an atom? Where can you find this form of energy?
Nuclear Potential Energy
Nuclear Reactors