Types of Chemical Reactions
What are some of the signs that show a chemical reaction taking place?
Color change, gas created, heat created, light created, temperature change....
What is Distance?
a. Measurement of how heavy something is
b. Measurement of total meters traveled.
c. Measurement from start to stop point no matter the path.
d. Measurement of matter.
b
Define speed and give an example
Distance/Time (70 mph)
What happens when forces are balanced?
No motion
p=mv
What do each of those variables stand for?
Momentum, mass, velocity
What type of chemical reaction is this?
A+B -> AB
synthesis
What is Displacement?
a. From start to stopping point
b. Total path traveled
a
Define Velocity and give an example
Distance/time (70 mph west)
What happens when forces are not balanced?
Motion!
What are the units for Momentum?
kilogram-meters per second (kg x m/s)
What type of chemical reaction is this?
AB -> A+B
Decomposition
What is the distance traveled by Santiago if he skated 3 meters to the park and 50 meters around the sidewalk and finally 10 meters back home?
(include the units)
63 meters
Define acceleration and give an example
Chance in velocity! 1.2 m/s2
What does F=ma stand for? (write the units as well)
force, mass, acceleration
Newtons, kg, m/s2
The momentum of an object is in the ___ direction as its velocity.
same
What type of chemical reaction is this?
A+BC -> AC+B
Singe replacement
What is the displacement of a track runner if they run one lap?
0
If you are riding around your block in your hellcat at a constant speed , are you accelerating? why?
YES. acceleration is change in Velocity
Remember velocity has direction!!!!
If Kelly pushes a box to the left with 60 Newtons of force and Adam pushes the box to the right with 75 Newtons of force , in which direction will the box move and with how much force?
15 to the right
The ____ momentum a moving object has, the harder it is to stop.
more,
What type of chemical reaction is this?
AB+CD -> AC+BD
Double Replacement
What is the total distance traveled by jane if she ran 3 miles today, 7 miles yesterday, and 8 miles the day before that?
18 miles
Acceleration can be 3 things name them
speed up, slow down, change direction
How do we calculate the force of gravity?
Which has more momentum: a 5 kg sledgehammer swung at 5m/s, or a 3.0 kg sledgehammer swung at 9 m/s
3kg sledgehammer