A bike travels 20 km in 30 minutes
(.5 hours). Her speed would be ______ km per hour.
40 km/h
If a toy car traveling at a velocity of 10cm/s passes a toy car traveling at a velocity of 10 cm/s in the opposite direction, both cars have a ___________velocity.
different
A child riding a merry-go-round is accelerating because his direction is ______________.
changing
A person standing on a moving escalator is moving relative (in comparison) to another person standing on a ____________escalator.
different
If the distance between a ball and a rock is changing then at least one of them has ___________.
motion
A snail that increases its speed from 3 ft/hour to 5 ft/hour is ______________ because it increased its speed.
accelerating
Speed equals distance divided by
time
A monkey rode his bike at an average speed around the corner to get a banana. What did he change while he was riding?
velocity
A train that travels 100 km in 4 hours is traveling at what average speed?
25km/hour
Changing direction (like going in a circle) is an example of a kind of
acceleration
A place or object used for comparison to determine if something is in motion is called a/an
reference point
If you know the distance and object has traveled over a certain amount of time, you can determine the
speed of the object
Maintaining speed is not an example of acceleration.
true
You can show the motion of an object on a line graph by plotting distance and_________?
time
If velocity is measured in meters per hour (km/sec) and time is measured in seconds, the unit for acceleration is _________?
m/s/s or m/s2
In graphing motion, the steepness of the slope depends on the ___________ of the object.
speed/velocity
The rate at which __________changes is called acceleration.
velocity
The metric system is used
all over the world
To determine the _______________rate of an object, you must calculate the change in velocity during each unit of time.
acceleration
If a bike travels 100km in 4hours, the average speed would be
25km/hr
If you know a car has traveled 60km in 2hours, you can find its speed which is ___________.
30km/hr
The moon accelerates because it is continuously changing ___________ in orbit.
direction
If the speed of an object does not change, the object is traveling at a/an ____________ speed.
constant
If an object moves in the same direction and at a constant speed for 16 hours, what is true about its velocity?
the object's velocity did not change for 16 hours
Find the acceleration if the car's final velocity was 40m/s and its initial velocity was 4m/s in 6seconds.
6 m/s/s
An athlete can run 10km/hr. If the athlete runs at that same average speed for half an hour (.5 hours) , how far can that athlete travel?
5 km
How much time is required for a bike to travel 300 meters at an average speed of 5m/s?
60 sec
When riding a bike past the building, you are moving relative to the building. The building is the _______________?
reference point
The distance traveled by a moving object per unit of time is called?
speed
The statement that the motion of a hurricane is 100km/hr in a westerly direction is a description of the hurricane's ______________?
velocity
Acceleration is the rate of change in velocity in a certain amount of ?
time
A car traveling to Sacramento would be best explained as having ____________ speed.
average
A golf ball ____________ when either speed or direction changes.
accelerates
An object traveling at the same speed the entire time would be described as having ________ speed.
constant
If two lines appear on the same motion graph, the line with the steeper _____ indicates a greater speed.
slope
30 m/s south represents what?
velocity of a moving object
A steep downward line on a graph is an example of what?
deceleration
In a graph of distance versus time, the slope represents ?
speed
The rise of a line on a distance vs time graph is 300 km and the run is 50 hours. What is the speed of the object represented by this graph?
6 km/hr