Unit 5
What type of reaction requires O2 and produces H2O and CO2?
Combustion
Which of the universal forces holds together the like-charges (positive and neutral) in a nucleus?
Strong
Which Newton's Law best fits the following example: Two rams charge and hit each other head on, and both are pushed backward.
Newton's Third Law
A _________ reaction gives off heat after the reaction takes placing, making it feel warm.
Exothermic
During nuclear _____, a large nucleus is split into two smaller nuclei.
Decay
Which Newton's Law best fits the following example: A pinball rolls toward the bottom of the machine until it is stuck by a flipper, sending it toward the upper left corner of the machine.
Newton's Second Law
What does the Law of Conservation of Mass/Matter state?
Matter cannot be created or destroyed.
The energy produced in the sun is an example of nuclear _______.
Fission
In a/an _________ collision, objects bounce off each other and momentum is transferred from one object to another.
Elastic
When ammonium nitrate is added to water, the temperature decreases by 25 degrees. What kind of reaction is this?
Endothermic
True or false, during nuclear processes, atoms of one element can change into atoms of a different elements?
False
A dog has a mass of 50 kg and runs at a velocity of 4 m/s. What is the dog’s momentum?
12.5 kg x m/s
How do the number of atoms for each element on the reactant side compare to the number of atoms for each element on the product side in a balanced equation?
They are different because different compounds are formed.
A particle emitted during nuclear decay that is made of an electron is a/an:
Alpha Particle
What force works in opposition to the motion of an object?
Friction