A person eating and a plant going through photosynthesis are examples of ___________ energy.
chemical
100
H20 is a compound because _____.
It contains more than 1 pure substance
100
What is a balanced force?
When two or more forces are equal and there is no acceleration
200
On a Distance/Time graph, the line with the steeper slope shows an object traveling (faster/slower) than the line with the less steep slope
Faster
200
What is potential energy?
Stored energy an object has due to position waiting to be used
200
Describe the difference between convection, conduction, and radiation?
Convection: transfer through moving particles (heat up cool down)
Conduction: transfer through touching
Radiation: transfer through waves
200
How many different elements are in the compound
C12 H22 O11?
3 (C, H, & O)
200
Which type of simple machine would be used to lift an object into the back of a truck?
incline plane
300
What is the equation for Density?
D= M/V
300
If two objects have been dropped from a building, the object that is higher up will have more _____ energy while the object that has fallen closer to the ground will have more _________ energy.
Potential Kinetic
300
The sun helping a plant grow is ______ energy changing into _________ energy.
Radiant - Chemical
300
is Ne4 a compound or an element and why?
Element, all the atoms are Neon
300
How can we adapt pulley's to make them lift heavier loads?
add extra pulley's
400
What is the density of an object that has a volume of 3mL and a mass of 30g?
10 g/mL
400
On a roller coaster, when will the cart have the most kinetic energy?
At the bottom of a hill/loop
400
A battery operating a toy is which type of energy transfer?
Chemical - Mechanical
400
Which has the greatest number of elements?
C6
KOH
HCl
CO
KOH, has 3 K, O, and H
400
Unbalanced forces cause objects to?
accelerate in the direction of the greater force
500
If an object travels 40 meters and it takes 10 seconds, what is the speed?
4 m/s
500
If an object has been dropped from a building, what will be the kinetic and potential energy amounts half way down?
they will be EQUAL
500
Thermal energy always moves in which direction? (Hint: heat-cold, cold-heat, thermal equilibrium...)
From hot - cold
500
Where are the protons, neutrons, and electrons located in an atom?
Protons and Neutrons are in the Nucleus and the Electrons are outside in the Electron Cloud
500
An object with more mass needs more _____ to move it the same distance as an object with less mass.