Test 1 Flashcards
A description of a theory that accounts for its known or inferred properties -force: push or pull on an object
Model
A tentative explanation for an observation, phenomenon, or scientific problem that can be tested by further investigation
Hypothesis
The force between objects with mass
Gravity
A force that tends to break the nucleus of an atom apart which caused radioactive decay
Weak (nuclear) Force
An explanation for a group of facts, especially one that has been repeatedly tested or is widely accepted and can be used to make predictions about natural phenomena
Theory
A force that holds the nucleus of an atom together
Strong (nuclear) force
Well tested theory, so firm as to be unquestioned by science
Law
The force between charged particles
electromagnetic force
The force that keeps the planets in orbit around the sun
Gravitational force
The force that holds the nucleus of an atom together
Strong force
The force that holds the atoms in your textbook together
Electromagnetic force
The force that makes apples fall from trees
Gravitational force
The attractive force that is felt between to objects with opposite charge
Electromagnetic force
T or F
If a single experiment shows a well established theory or law to be false, the theory or law must be immediately discarded
False
T or F
If several reproducible experiments are done to show that a well established theory or law is false and there is a consensus in the scientific community, then the theory or law must be modified
True
2000 kg can be written as
2*10^6 g
A measure of the amount of matter in an object
Mass
The change in the velocity of an object
Acceleration
Motion of an object that is moving at a constant speed in a straight line
Uniform Motion
The sum of all of the forces present on an object
Net force
A measure of the force of gravity on a object
weight
The speed and direction of an object
Velocity
Towards a center
Centripetal
A driver in a small car is going 10 miles per hour going toward a truck that is twice as massive as the car and is going 40 miles per hour. The two vehicles experience a head-on collision. Which of the following is true concerning the forces
The car experience a force that is the same as the force that the truck experiences