Speed + Velocity (1)
Speed + Velocity (2)
Speed + Velocity (3)
Newton's First Law
100
What is the formula for calculating speed?
speed = distance/time
100
What is the difference between speed and velocity?
Velocity is speed in a direction
100
What is the difference between distance and displacement?
Distance is the total length of the path an object takes, displacement is the difference between initial and final positions of an object
100
Objects in ______ will stay in ______ until acted upon by an __________ force
motion, motion, unbalanced
200
How can we describe the speed of the object represented in this graph?
The object is moving at a constant speed.
200
It takes one hour for an airplane to travel north for 750 kilometers (km). What is the airplane's average velocity?
750 km/hr north.
200
Camila wants to investigate the average speed of a train from the start to the end of a route. What information does she need to find the average speed?
Total distance travelled and total time to travel the route.
200
Objects at ____ will stay at ____ until acted upon by an __________ _____
rest, rest, unbalanced force
300
A student walks 10 meters forward, then 10 meters back to the starting point.
What is the student's distance?
What is the student's displacement?
Distance = 20 m
Displacement = 0 m
300
If Jessie throws the football 50 meters in 3 seconds, what is the average speed of the football? (include units)
16.67 m/s
300
Julissa arrives in science class 45 seconds after leaving math which is 90 meters away. How fast did she travel? (include units)
2 m/s
300
What is intertia?
The tendency of an object to remain in motion until an ouside force acts on it
400
A baseball is thrown a distance of 20 meters. What is its speed if it takes 0.5 seconds to cover the distance? (include units)
40 m/s
400
What is occurring from minute 25-35?
The family took a break from their walk.
400
What is occurring at line segment D?
The subject is returning to their initial position.
400
Why do we wear seatbelts in a car?
A passenger's/driver's inertia will keep the person moving forward if the vehicle comes to a sudden stop. The seatbelt mitigates this effect of inertia.
500
Kristina is driven 10 km to school in 0.50 hours. She is then driven 5 km from school to practice in 0.33 hours. After practice she is driven 3 km home in 0.25 hr. What is her average speed for the entire trip?
16.67 km/hr
500
Sketch a graph of an object that is accelerating (speeding up.)
500
In a 100 meter swimming race, Miho swam the first 50 meters in 42 seconds. She swam the second 50 meters in 40 seconds. Calculate Miho’s average speed during the race.
1.22 m/s
500
Why would an astronaut continue floating into space forever if they pushed off the International Space Station?
There is not air in space, which means there are no air particles to create friction to counteract their inertia.