Worksheets1st 9wks Physics Exam
Total questions: 20
Worksheet time: 40mins
The value for gravitational acceleration is
8.9 m/s2
98.1 m/s2
9.8 m/s2
9.8 m/s
Free Fall is a state where (a) is the only force acting on an object.
The slope of the line in a position-time graph indicates the (a) of an object.
Which of the following are vectors? Select all that apply.
23 m/s North
1.5 m/s2 up
45 minutes
2,375 m
Using the equation, Vf = Vi + a Δ t, if an object has been falling for 6 seconds how fast is it going in m/s?
58.8 mi/hr
58.8 m/s
70 m/s
48 m/s
(a) is the change in velocity measured over a time interval.
If Vf = 4m/s, Vi = 0m/s, Tf=3 s and Ti = o s, what is the average acceleration?
0.75 s
12 s
1.3 s
13 s
What does a Free Body Diagram tell us about an object? Choose all correct answers.
how heavy it is.
What forces are acting on it.
The relative strength of the forces.
What it's made of.
The formula for calculating displacement is (a) ?
The definition of displacement is
How far you've travelled from your starting point.
How far you are from your starting point.
How long you've been travelling.
The compass bearing you're at relative to your starting point.
What is the formula for Newton's second law?
(a)
(Xf - Xi) / (Tf - Ti) is the equation for calculating what vector?
(a)
A quantity with only a magnitude is called a
(a)
If a ball thrown straight up takes 5 seconds to reach the peak of its flight, how long does it take to return to the same level it left?
10 sec.
5 sec.
7.5 sec.
3 sec.
An object falls for 10 seconds in free fall. How fast is it going at the end of those 10 second?
(a)
Using Vf = Vi + aTf, for a ball starting at rest and experiencing free fall for 1.5 seconds. Choose a coordinate system with the positive axis up. How fast is the ball travelling at the end of the 1.5 seconds?
3 seconds
1.5 seconds
-3 seconds
-1.5 seconds
The free fall acceleration on Mars is about 1/3 what it is on Earth. Suppose you throw a ball upward on Mars with the same velocity on Mars as on Earth. How would the ball's maximum height compare to that on Earth?
It would go a third as high on Earth.
it would go the same height as on Earth.
It would go three times as high.
It would go into orbit around Mars.
In a Free Body Diagram, if two arrows, representing opposing forces, have the same magnitude, what will the net force be?
(a)
A force is
(a)
The Draconid meteor shower will reach its peak Wednesday night, October 7th, in the hours after sunset. They will appear to be coming from the constellation Draco which is just to the west of Polaris, the North Star. How likely are you to go outside and try to watch this meteor shower?
Very likely
Somewhat likely
Maybe
Not at all likely
