12 Physics 2.1 Quiz

Quiz
•
Physics
•
12th Grade
•
Medium
John Kunz
Used 1+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
One assumption made when using equations to predict the motion of a projectile is:
that there is zero air resistance
the hight of a launched projectile is not important
the value for gravity varies with height
that horizontal nd vertical components of velocity are independent
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Another assumption made when using equations to predict the motion of a projectile is:
that the maximum velocity of an object is at the very top of a projectile's motion
That there is zero velocity at the top of a projectile's motion
That there is a constant value for gravity of 9.8 m/s/s
That gravity does not exist in space
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The path of a projectile described by the projectile motion equations has the shape of a:
exponential
hyperbolic graph
semi-circle
parabola
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Newton's second law describes the force due to gravity on a falling object. This law can be described as:
F=ma
for every action there is an equal and opposite reaction
the law of inertia
acceleration = change in velocity/time
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
The ............................ of an object does not affect the rate at which it falls.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A ball is allowed to free fall from a height of 50m. Ignoring air resistance and using 9.8 m/s/s as the value for g, calculate the time the ball takes to hit the ground.
2.5 seconds
2.8 seconds
3.2 seconds
3.5 seconds
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A ball is allowed to free fall from a height of 50m. Ignoring air resistance and using 9.8 m/s/s as the value for g, calculate the velocity of the ball at the point of impact.
24.6 m/s
27.3 m/s
29.1 m/s
31.3 m/s
8.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Another assumption for projectile motion questions is that the horizontal velocity of the object can be considered to be ................
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