Show:
Motion
acceleration
Velocity
speed
100
A train covers 60 miles between 2 p.m. and 4 p.m. How fast was it going at 3 p.m
The speed is traveled distance (60 miles) divided by traveled time (4pm – 2pm = 2hours): 60 miles ______ = 30 mph 2 hours
100
Whats an example of increasing speed?
Cars speeding up at a green light.
100
what is velocity?
Velocity is the speed and direction of an object
100
Is speed usually constant or not?
speed is usually not constant
200
a reference point is one that is not what?
a reference point is one that is not moving
200
What is an example of decreasing speed?
An example of that would be cars slowing down or stopping.
200
What is the difference between speed and velocity?
Speed is distance and time.Velocity is direction
200
What does 150 mph represent?
Speed
300
The scale of a map can be used to find the _____ between different locations.
The scale of a map can be used to find the distance between different locations.
300
What is an example of a car changing direction?
An example of a car changing direction would be a car taking a turn
300
A car travels at uniform velocity a distance of 100 m in 4 seconds. What is the velocity of the car?
25 m/s
400
An object is in motion if it changes position relative to a reference ____.
An object is in motion if it changes position relative to a reference point.
400
Whats the formula for acceleration?
The formula for acceleration is final speed-initial speed ___________________ time
400
A sailboat is traveling north at 10 km/h, relative to the water. The water is flowing west at 5 km/h, parallel to the shore. What is the velocity of the sailboat relative to ground, and what is the angle of travel that the sailboat makes with respect to the shore?
11.18 km/h, 63.43 degrees or 26.57 degrees
500
T or F. Motion can always be seen around us.
False
500
What is the units of acceleration
The units of acceleration is meters per second squared
500
A plane needs to reach a velocity of 300 km/h relative to the air in order to take off. If there is a wind blowing at 80 km/h in the direction opposite to take off, what velocity must the plane reach relative to ground in order to take off.
220 km/h