Matter
Phys/Chem Changes
KE & PE
Thermal Energy
Newtons 1st
100
What are the smallest parts of matter?
atoms
100
Give me an example of a physical change...
-cutting paper
-melting ice
-chopping wood
100
What do you call the ability to do work or cause change?
Energy
100
If you have a cold object and a warm object sitting beside each other, which direction will thermal energy flow?
From the warmer object to the colder object
100
What is Newton's First Law?
an object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction, unless acted upon by an unbalanced external force
200
Can matter be created or destroyed?
No, it can only be changed
200
Give me an example of a chemical change...
-baking a cake
-burning wood
-rust
-rotting fruit
200
What is the value of the constant of gravity?
9/8 m/s^2
200
What do you call the measurement of the average kinetic energy of random motion of particles of matter.
temperature
200
What is a balanced force?
No motion, net force of zero
300
Describe the behavior of atoms in a solid
They are vibrating in place, but not moving around each other
300
What type of change produces one or more new substances?
chemical change
300
What is the equation for kinetic energy?
KE=1/2mv^2
300
What do you call the total kinetic and potential energy of all of the particles of an object
thermal energy
300
What is the resistance of an object to a change in motion?
inertia
400
How do gas molecules behave?
They move quickly and fill the entire space provided to them
400
What is a reactant in a chemical reaction?
The chemicals that go into the reaction in the beginning
400
What is the equation for potential energy?
PE=mgh
400
Explain thermal energy and particle movement as you heat a pot of water on a stovetop
Thermal energy is transferred from the stove to the water and the particles of water begin moving faster and faster until they eventually turn into gas and move around the room
400
Find the net force:
3N <-----
500
How much matter is in a certain volume is called...
density
500
What are synthetic materials?
Materials that are man-made
500
Which has more energy? What is the difference between the two?
*A 2kg apple 30 meters up in a tree
*The same apple rolling down a hill at 3 m/s
Apple in tree= 196N
Rolling apple=9N
Difference=187N
500
What type of heat transfer comes from the sun?
Radiant
500
Draw a net force diagram for a box that has 30 N of gravity pulling down on it, while a man pushes it with a force of 15 N to the right, while a 5 N wind pushes against the box to the left.
