Newton's Laws
This law states that an object will remain at rest or move at constant velocity unless acted on by a net force.
What is Newton's First Law?
The SI unit for force.
What is a Newton (N)?
The scientific theory describing the origin and expansion of the universe.
What is the Big Bang Theory?
The process in which scientists evaluate each other's research before publication.
What is peer review?
This force keeps planets and satellites in orbit.
What is gravity?
This property describes an object's resistance to changes in motion.
What is inertia?
If a 2 kg object experiences a force of 10 N, this is its acceleration.
What is 5 m/s²?
This observation shows that most galaxies are moving away from Earth.
What is redshift?
Scientific theories change when this becomes available.
What is new evidence?
If net force equals zero, an object moves with this type of motion.
What is constant velocity (or remains at rest)?
The equation F = ma represents this law.
What is Newton's Second Law?
If force stays constant and mass increases, this happens to acceleration.
What is acceleration decreases?
The further away a galaxy is, the larger this becomes.
What is its redshift?
Telescopes are an example of this factor that improves scientific understanding.
What is technology?
This quantity is calculated by dividing force by mass.
What is acceleration?
When a rocket pushes gases downward, this law explains why the rocket moves upward.
What is Newton's Third Law?
The mass of an object experiencing a force of 24 N and accelerating at 6 m/s².
What is 4 kg?
This leftover radiation from the early universe strongly supports the Big Bang Theory.
What is Cosmic Microwave Background Radiation (CMBR)?
The reason scientists generally trust the Big Bang Theory.
What is that it is supported by multiple lines of evidence?
Redshift is evidence that galaxies are doing this.
What are moving away from us?
A satellite continues moving forward while gravity pulls it toward Earth because of these two Newton's Laws.
What are Newton's First and Second Laws?
A 10 kg object accelerates at 2 m/s². This is the net force acting on it.
What is 20 N?
The expanding universe suggests that in the past all matter was concentrated in this condition.
What is an extremely hot, dense state?
The strength of science comes from its ability to do this when evidence changes.
What is revise or improve explanations?
A student says, "Scientific theories can't be trusted because they change." This is the best
What is "Theories become stronger as new evidence improves them"?