KEEP IT SIMPLE
Physics comes from the Greek word "Phyzikos" which means?
" natural philosophy"
A horizontal line on a velocity/time graph shows______ acceleration.
a) zero
b) positive
c) changing
d) negative
a) zero
How many significant figures are there in each of the following:
a) 0.00054
b) 0.897
c) 74.00
a) 2 sig figs
b) 3 sig figs
c) 4 sig figs
Find the angles of a 3-4-5 right triangle.
tan A= 3/4 900 - 36.870 = 53.13
A = 36.87O B= 53.130
Whose face is on a dime?
Roosevelt.
To calculate the average speed, you must
a) add distance and time
b) substract the total amount of distance and by the total amount of time.
c) add the speed plus direction.
d) divide the total amount of distance by the total amount of time.
d) divide the total amount of distance by the total amount of time.
When there is no _____ _______, all objects fall with the same acceleration regardless of their masses.
air resistance.
What is the largest planet of the solar system?
Jupiter
How long will it take you to get to school if the distance between your house and the school is 15 miles and you travel with an average speed of 60 miles oer hour?
t= x/v
t = 15 mi/6omil/h
t= 0.25h or 15 minutes
How many sides does a stop sign have?
The sign itself is an octagon, therefore 8 sides, but if you count the front and back of the sign then, you can say there are 10 sides, maybe???
What would a graph of no motion look like:
a) a horizontal line
b) the slope of the line increasing steadily
c) the slope of the line decreasing steadily
d) the slope of the line would increase and decrease
a) a horizontal line
Convert 2500m/s to: km/h
9000 km/h
What is the nearest planet to the sun?
Mercury
2. Which of the following statements are true for a ball thrown vertically upward?
a) The ball has a negative acceleration on the way up and a positive acceleration on the way down.
b) The ball has a positive acceleration on the way up and a negative acceleration on the way down.
c) The ball has zero acceleration on the way up and positive acceleration on the way down.
d) At the top of the path, velocity of the ball becomes zero for just one instant.
e) The ball has a constant acceleration throughout its flight.
d) At the top of the path, velocity of the ball becomes zero for just one instant.
e) The ball has a constant acceleration throughout its flight.
What is the hardest known substance?
Diamonds
Convert 170 pounds to kilograms
77.27 Kg
This man is responsible for re-shaping the way early man believed the solar system worked. He proposed the earth was not the center of the universe, and that the sun was instead at the center of our solar system.
Who was he?
Copernicus.
Solve the following triangle: Find c and the measures of angles A and B.
a=6m, b= 7m
c= 9.22m
A= 40.60
B= 49.40
Use the quadratic formula to solve the following:
2x2 + bx = -2
2x2 + bx +2= 0
a=2 ; b=6 ; c=2
x= -2.62 ; x= -0.38
Choose a letter and make a complete sentence, in which each word starts with that letter. Words cannot repeat!
Sentence should make sense.
Ex/ Susan Smith sells special soup some Sundays.
_________ is a push or a pull that causes an object to change its motion.
Force
A 50 ft. tall flagpole casts a shadow that is 18ft. long. What is the angle of elevation?
Angle of elevation is 70.20
TanE =50ft/18ft
A motorcycle accelerates at 4.0m/s2 for 6 seconds. If the motorcycle started at rest, find the velocity at the end of 6 seconds.
V= Vo +at
V= 24m/s
A rock is thrown horizontally off a 100 m cliff. It lands 95m away. At what speed was it thrown?
vertical motion:V0= 0 ; a= 9.8m/s2 ; y0=0;y= 100m
y= y0 +V0t +1/2 at2
y= 1/2at2 ; t= 4.52s
Horizontal motion: X0=0 ;V0= 0 ; a=0 x= 95m
x= x0 +V0t +1/2 at2
x=V0t
x= x0 =V0t +1/2 at2
V0= x/t V0 = 21m/s
In which hand does the statute of liberty hold the torch?
What does VIP stand for?
What does GPS stand for?
Right hand
Very Important Person
Global Positioning System