Theories and Laws
It is observing, studying, and experimenting to find the nature of things.
Science
It is the base unit used to express temperature.
Kelvin, K
A graduated cylinder is used to...
...measure volume
What is the speed formula?
Speed = distance / time
It is any action that can change the state of motion of an object
Force
It is a descriptive statement or equation that reliably predicts events under certain conditions. It describes a process in nature.
Scientific law
It is the base unit used to express length.
Meter, m
A balance is used to...
measure mass.
What is the acceleration formula?
acceleration = (final velocity - initial velocity) / time
Contact forces occur when...
...there is an interaction between objects that touch.
It is a system of ideas that explains many related observations and is supported by evidence acquired through scientific investigation.
Scientific theory
1 km =
1000 g
Name two instruments that can be used to measure temperature
Examples: thermometer, digital thermometers, thermocouples, infrared thermometers, etc
Is there acceleration when an object moves at a constant speed? Explain.
There is no acceleration when an object moves at a constant speed because its speed does not change.
The unit of force is...
N, Newton
Evolution explains why species are adapted to their environment.
Scientific Theory
Convert 8.700 L to mL
8,700 mL
Precision is the exactness of a measurement, and accuracy describes how close a measurement is to the true value.
How do we know if an object's motion is constant in a distance vs time graph?
The distance vs time graph shows a straight line.
1 N = .....
1 N = 1 kg m/s2
The energy can be transferred as heat, from a warmer object to a cooler one.
Scientific Law
Name an example of a derived unit.
m/s, m/s2, L, or N
If the buoyant force is greater than the weight of an object, is the object floating?
The object is floating
An airplane is at the end of its trip from France to Mexico. To be able to land, the captain reduces the velocity from 356 km/h to 164 km/h in 32 minutes. What is the airplane’s acceleration during this time?
a = -360 km/h2
The airplane decelerates at 360 km/h2
Name at least three of the four fundamental forces in nature
Strong nuclear forces, weak nuclear forces, electromagnetic forces, force of gravity