WorksheetsMidterm Review
Total questions: 18
Worksheet time: 11mins
How do you know an object is in motion?
You must see it
You can hear it
It changes position
What is a reference point used for?
To look up a definiton
To describe the location of an object
To apply force on an object
If a man walks 200 meters down the street, stops at McDonald's for from fries, then walks 50 m more to his destination, what is his total distance traveled?
150m
250m
More information is needed
What is speed?
How far an object moves in a given amount of time
The ability to do work
A push or pull on an object
In the equation for speed, what does the variables "d" stand for?
(a)
In the equation for speed, what does "t" stand for?
(a)
If an object is traveling at constant speed, what is true?
It is traveling the same amount of distance every second
It is traveling a varying, or changing, amount of distance every second
It is speeding up and slowing down
Choose all of the correct units of measurement for distance:
meters (m)
miles (mi)
Newtons (N)
seconds (s)
kilometers (km)
Choose all of the correct units of measurement for speed:
m/s
kg/N
m/s/s
km/hr
mi/hr
On a distance vs. time graph, distance and time are plotted on the x and y axis. What is true about a positive slope line on this type of graph?
The object's distance is increasing as time passes
The line shows the speed of the object
Steeper lines shows faster speeds
All of the above
If the slope of a line on a distance vs. time graph because horizontal (flat), what does this mean about the objects motion?
It has stopped moving
It is moving at constant speed
It is accelerating
What is a vector?
A measurement that has size only (25m)
A measurement that has direction only (North)
A measurement that has both size and direction (25m North)
How is velocity different from speed?
Velocity is faster than speed
Velocity measurements include a direction
They are exactly the same thing
What is acceleration?
A change in position
A type of energy
A change in velocity
Choose all of the ways an object can demonstrate acceleration:
Increase speed
Stay constant speed
Decrease speed
Move in a straight line
Change direction
What does it mean to accelerate at a rate of 8m/s/s?
The object is traveling 8m/s
The object is increasing it's speed 8 m/s every second
The object increases its position 8 meters every second per second
A cheetah accelerates from 15m/s to 30m/s in 3 seconds. Calculate the rate of acceleration. a = (vf - vi) / t
(a)
What does negative acceleration mean?
No change in motion
Moving in a circular path
Speed is slowing down
