Energy
What is Energy?
The ability to do work or cause change.
What is the circuit symbol for a battery?
A pair of long and short parallel lines. With positive and negative charge.
What tool is used to view cells?
Microscope
What is the main function of the circulatory system?
To transport blood, oxygen, and nutrients
On which axis is the independent variable plotted on a graph?
The x-axis
What type of energy is associated with moving objects?
Kinetic Energy
What is the formula for Ohm's Law?
V = I X R
Name one structure found in plant cells but not in animal cells
Chloroplasts or cell wall
What are the four main components of blood?
Red blood cells, white blood cells, plasma, and platelets
What do you call the variable that is kept the same during an experiment?
A controlled variable
Name two renewable and two non-renewable sources of energy.
Renewable: Solar, wind, hydro Non-renewable: Coal, oil
What happens to the rest of the bulbs in a series circuit when one bulb goes out?
All bulbs go out. (Christmas lights)
What is the function of mitochondria?
They produce energy through cellular respiration
What type of digestion involves breaking food into smaller pieces without changing its chemical structure?
Physical Digestion -> Chewing Food with Teeth
Name two pieces of safety equipment in science labs
Safety goggles, a lab coat, gloves, etc.
What type of energy does a toaster transform electrical energy into?
Heat and light energy
If the voltage is 12V and the current is 3A, what is the resistance?
4 ohms
What is the function of red blood cells?
To carry oxygen
What organ filters blood in the excretory system?
The Kidney
Which part of a scientific report do you collect and tabulate the findings?
Result section
A device uses 200 J of energy and outputs 50 J of useful energy. What is its efficiency?
25%
How does the current behave in a series and parallel circuit?
In series, the current is the same throughout each component. In a parallel circuit, the current is divided amongst each path.
What is the correct biological organisation from smallest to largest (Organism, organelle, organs, cells, body system, tissue)
Organelle -> Cells -> Tissue -> Organs -> Body Systems -> Organism
List two functions of the skeletal system
Protects organ, structure, assists with movement, produces red blood cells.
A student conducted an experiment to test how light intensity affects the rate of photosynthesis. They measured the number of oxygen bubbles produced by pondweed at different distances from a lamp. List the independent, dependent, and two controlled variables.
Independent variable: Distance of the lamp from the pondweed (light intensity)
Dependent variable: Number of oxygen bubbles produced (rate of photosynthesis)
Controlled variables: Type of plant used, volume of water, temperature