2.1 - Distance and Displacement
What is distance?
Length of the path traveled
The SDT triangle is amd eup of what 3 parts?
Speed, distance, and time
What is the equation for momentum?
p=mv
What are the three ways in which an object can accelerate?
1. Speeding up
2. Slowing down
3. Changing direction
What letter represents momentum in the PMV triangle?
P
What is displacement?
Overall change in position
Give an example of a possible unit of measurement for speed, distance, and time.
Speed: m/s, km/hr
Distance: cm, m, km
Time, seconds, hours, minutes
What is the unit label for momentum? (Hint: use random direction)
Kg x m/s EAST
Acceleration is a change in _____.
Velocity
What is a possbile unit label for mass?
mg, g, Kg
If I traveled 4 meters in a straight line, stopped for a moment, and continued for another 3 meters, what is my overall displacement?
7 meters
If you traveled 25 km in 5 hours, what is your speed?
5 km/hr
When comparing two objects, does the object with the higher mass always have higher momentum?
NOOOOOOO
What is a possible unit label for acceleration?
m/s/s
m/s2
km/hr/s
Velocity is just speed with _______.
Direction
How you describe an object's motion depends on the _______ _______.
Reference point
If you hiked at a constant speed of 3 km/hr, how long would it take to hike a 39 km trail?
13 hours
What is the momentum of a 5 Kg bowling ball traveling at a velocity of 10 m/s EAST?
50 Kg x m/s EAST
A parachute on a racing dragster opens and changes the speed of the car from 85 m/s to 45 m/s in a period of 4 seconds. What is the acceleration of the dragster?
-8 m/s/s or 8 m/s2
True or false: Objects with different masses cannot have the same momentum.
FALSE
What is the distance and displacment represented in this image?
See Image
If you were running at a speed of 5 km/hr for 2.5 hours, how much distance would you cover?
12.5 km
What is the velocity of 20 Kg cannonball that has a momentum of 600 Kg x m/s EAST
30 m/s EAST
A cyclist increases their velocity from 8 m/s to 40 m/s as they ride downhill. If it takes them 4 seconds to reach the bottom of the hill, what was their velocity?
8 m/s/s or 8 m/s2
What are the three steps to solving motion math problems?
1. Write the equation
2. Fill in correct numbers
3. Solve and write the units