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Physics Unit 3 projectiles and Newton's Laws Flashcards | StudBud
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Physics Unit 3 projectiles and Newton's Laws
Physics Unit 3 projectiles and Newton's Laws
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ch 5 and 7
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Questions
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Answers
1
Which is a vector
Speed
Force
Time
Height
2
A bullet is shot out of a gun at the same time as a bullet is dropped. Which hits first?
shot bullet
dropped bullet
same time
3
Which of the following is a projectile
Airplane
Golf ball that has been hit
Bird
Missile
4
Which quantity is a scalar?
Displacement
Acceleration
Force
speed
5
Forces always occur
as single quantities
in triplets
in pairs
by themselves
6
Justin kicks a soccer ball at 60 degree angle. What other angle would go the same horizontal range?
45 degrees
25 degrees
30 degrees
70 degrees
7
In the marble lab, what determined the horizontal speed of the marble?
How high on the ramp you released it from
height of the cup
mass of the marble
height of the table
8
Henry weighs 600 N. As he sits on the chair, the chair exerts _________ on him.
6 N
10 N
600 N
60 N
9
A vector needs what to completely understand it?
the direction
the symbols
the time
the magnitude
10
Ikeem throws a football at a 20 degree angle. What angle would travel just as far horizontally?
60o
45o
80o
70o
11
Corina pulls a scale west with 200 N. Alli pulls the scale East with 200 N. The scale reads?
200 N
600 N
0 N
400 N
12
What angle would produce the farthest horizontal range for a projectile?
60 degrees
30 degrees
90 degrees
45 degrees
13
In the marble lab, what determined how long the marble stayed in the air?
where on the ramp you released it from
height of the table
the length of the vascar trap
mass of the marble
14
What is the resultant of two forces one 7 N and the other 3 N acting in opposite directions?
2.5 N
10 N
4 N
13 N
15
Action and reaction forces do not cancel each other out because
the Galileo proclamation
they are not exactly equal
they act on different objects
there is a delay in the forces
16
This Newton's law states that for every force there is an equal and opposite force.
2nd law
4th law
3rd law
1st law
17
Which is not an example of a projectile?
fired bullet
thrown football
An arrow shot out of a bow
bowling ball rolling down an alley
18
A car is traveling around 50 mph collides with a bicycle sitting in the road. Which gets hit harder?
Not enough info
The bike
The car
Both the same
19
Which component of a projectile's motion does not change as it flies?
Horizontal component
Vertical component
20
Two vectors one vector 3 and the other 4 are acting at a right angle to each other. What is the resultant?
12
7
5
25