Speed, Velocity, & Graphs
A car traveling 75 miles per hour describes this quantity of motion.
What is speed?
This law explains why passengers fly forward when a car suddenly stops.
What is Newton’s First Law?
Heat transfer that occurs through direct contact.
What is conduction?
This force keeps planets moving in their continuous orbits around the Sun.
What is gravity?
As temperature increases, this happens to particle motion.
What is increases?
There are how many total atoms in glucose (C6H12O6)?
24 atoms
An energy pyramid shows that grass (producers) contains 50,000 kcal. Grasshoppers (primary consumers) eat the grass. Frogs (secondary consumers) eat grasshoppers. Snakes (tertiary consumers) eat frogs. Approximately how much energy is available to snakes?
What is 5,000 kcal.
A car traveling 75 miles per hour north describes this quantity of motion.
What is velocity?
A sheet of paper stays motionless on a table because of this type of force.
What are balanced forces?
Heat transfer that happens when warm fluids rise and cool fluids sink.
What is convection?
Objects in the Kuiper Belt are mostly made of this substance.
What is ice?
This form of energy is absorbed when water changes from liquid to vapor.
What is thermal energy?
There are how many hydrogen atoms in this chemical formula 2(H2SO4)?
4 Hydrogen atoms
The pancreas produces insulin, which regulates blood sugar levels. The thyroid gland produces hormones that control metabolism. Both are part of the same organ system. Which system do these organs belong to, and what is the primary function of this system?
what is the Circulatory system — transporting hormones and nutrients through blood
An object moving in a circle at constant speed still experiences a changing form of motion.
What is velocity?
These forces can stop a soccer ball from continuing to roll.
What are gravity and friction?
The Sun warming Earth's surface is this type of thermal transfer.
What is radiation?
Mars travels in a curved orbit around the Sun because of this force acting between them.
What is gravity?
An ice cube melts in a warm room because heat does this.
What is it moves into the ice cube?
An element is composed of of only one type of element, a compound has more than on element in the chemical formula.
A student sprints in a race. Her heart rate increases, her breathing quickens, and her leg muscles burn. Which combination of systems is MOST directly involved in meeting her muscles' increased demand for oxygen?
What is During exercise, muscles need more oxygen. The respiratory system increases breathing to take in more O2, and the circulatory system pumps faster to deliver that O2 to muscles. These systems work together.
This pair of examples represents speed or velocity: 20 m/s north and 10 km/h southeast.
What are examples of velocity?
Earth’s revolution around the Sun occurs because this type of force continually changes its direction.
What is an unbalanced force?
When molecules gain kinetic energy, they move faster and this quantity increases.
What is temperature?
According to the mass of planets, this planet has the strongest gravitational force.
What is Jupiter?
Thermal energy flows from high temperature to low temperature and from high kinetic energy to low kinetic energy.
What is heat transfer?
How do you remember that a chemical change is happening?
CGLTPO
In a population of beetles experiencing rapid habitat change, which reproductive strategy would provide the GREATEST long-term survival advantage, and why?
What is Sexual reproduction — genetic diversity from combining two parents' genes increases the chance that some offspring will have traits suited to the new conditions
A flat line on a distance-time graph indicates this condition.
What is the object is not moving?
This force keeps objects moving in curved orbital paths instead of in straight lines.
What is gravity?
Mammals can warm themselves because they obtain energy for heat from this source.
What is food?
Both the Moon’s orbit around Earth and Earth’s orbit around the Sun are caused by these two factors interacting.
What are gravity and inertia?
As water in a pot heats up, this happens to the speed of its molecules.
What is they move faster?
A physical change does Not create a new...
what is a substance. Only a chemical change creates something new.
Modern corn (maize) looks almost nothing like its wild ancestor teosinte, which had small, tough kernels. Over thousands of years, farmers consistently saved seeds from plants with the largest, sweetest kernels to plant next season. Which process explains the dramatic change in corn?
What is Artificial Selection. When humans deliberately choose which organisms reproduce based on desired traits, that is artificial selection. Farmers selecting seeds for size/sweetness over thousands of generations transformed the corn genome.