WorksheetsTest #1 REVIEW
Total questions: 15
Worksheet time: 26mins
CHOOSE THREE: What 3 things does a fire need to burn?
heat
oxygen
fuel
carbon dioxide
water
Calculate the following problems & match them to their answers:
5.3 Cal = _____ cal
5300.0
1.6 Cal = _____ J
6,694.4
3,741 cal = _____ Cal
3.741
1,950 cal = _____ J
8,158.8
6.3 x 106 J = _____ Cal
1,505.74
How would you write 36,820,000 in Scientific Notation?
Match the number in standard notation to it's match in scientific notation:
3.5 x 103
3,500
3.5 x 10-3
0.0035
3.5 x 107
35,000,000
3.5 x 10-7
0.00000035
3.5 x 100
3.5
Match the type of energy to the correct example:
coal
chemical potential energy
fuel burning
thermal energy
charged particles
electrical energy
radio
sound energy
runner
kinetic energy
How do you measure the kinetic energy of the molecules in a substance?
temperature
momentum
velocity
mass
When you take the temperature of a substance, what are you really measuring?
the average kinetic energy of ALL of the molecules
the kinetic energy of ONLY the fastest molecule
the kinetic energy of ONLY the slowest molecule
the average kinetic energy of ONLY the fast molecules
Temperature is a measure of average __________ energy of individual atoms.
Separate the characteristics into either endothermic or exothermic:
system absorbs heat energy
surroundings lose heat energy
system releases heat energy
surroundings gain heat energy
surroundings feel colder
surroundings feel warmer
heat travels from the surroundings to the system
heat travels from the system to the surroundings
needs energy
produces energy
Separate the characteristics into either endothermic or exothermic:
reduces kinetic energy of surroundings
increases kinetic energy of surroundings
product have more potential energy
reactants have more potential energy
Match the part of the atom to its responsibility or location:
protons & electrons
responsible for the charge of an atom
protons
responsible for the identity of an atom
electron cloud
electrons live here
nucleus
protons & neutrons live here
protons & neutrons
responsible for the mass of an atom
Label the parts of the atom:
neutrons
nucleus
electrons
electron cloud
protons
(a) are in the (b) and contribute to the overall mass of an atom. They are the (c) particles inside the atom. the (d) are in the (e) and DO NOT contribute to the overall mass of an atom.
Match the models to the correct type:
neutral atom
positive ion
negative ion
