Motion
The units of acceleration
m/s2
Gravity affects which component of a projectile's motion?
Vertical
An object experiencing a buoyant force of 10 N weighs 9 N. Will it float?
yes
The formula for mass number
protons + neutrons
What it's called when a falling object is experiencing a force of air resistance equal to the force of gravity acting on it
terminal velocity
The difference between speed and velocity
Velocity involves the direction
Newton's 1st Law
Object at rest will stay at rest, object in motion will stay in constant motion, unless acted upon by an unbalanced force
You press on the top of a balloon. Where in the balloon does pressure increase?
everywhere
The outermost electrons in an atom
valence electrons
Isotopes
This is defined as an object's resistance to motion
Inertia
Newton's 2nd Law
F = ma
Archimedes' Principle says that buoyant force acting on an object is equal to what?
The weight of the fluid that the object displaces
The type of chemical bonding that two nonmetals bonded together experience
covalent bonding
The value of the acceleration due to gravity on Earth
9.8 m/s2
You walk 4 meters forward and 4 meters backward.
1. what is your displacement?
2. what is your distance traveled?
1. 0 meters
2. 8 meters
The two factors that determine the force of gravity between two objects are ______ and ______
mass, distance
What causes buoyant force?
A difference in pressure above and below and object
The ion that Aluminum will form
Al3+
The chemical formula for lithium sulfide
Li2S
Is there a net force acting on an object that is moving in a circle at constant speed?
1. yes, no or it depends
2. explain
1. yes
2. velocity is changing because direction is changing. acceleration involves changing velocity. since the object is accelerating, there is a net (unbalanced) force
If the force of gravity on a falling ball on Earth is the action force, according to Newton's 3rd Law, what is the reaction force?
force of ball pulling up on Earth
Bernoulli's Principle
faster moving fluids create lower pressure, slower moving fluids create higher pressure
I bond in a 1:2 ratio with magnesium and I'm located in the same period as the element with atomic number 15. What element am I?
Chlorine
An 2 kg object moving at 2 m/s to the right collides with a 4 kg object moving at 1 m/s to the left. What is the total momentum after the collision?
0 kg*m/s