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WorksheetsScience 9 (Unit Test)
Total questions: 20
Worksheet time: 28mins
What is the value of the acceleration of gravity on Earth?
g = 8.8 m/s^2
g = 9.8 m/s^2
g = 9.8 m/^s
g = 11.8 m/s^2
What object follows a certain path that is acted upon by the force of gravity?
Projectile
Parabolic
Trajectory
Horizontal
What type of projectile motion where the path traced by an object accelerating only in the vertical direction while moving at constant horizontal velocity?
Vertical
Parabolic
Trajectory
Horizontal
It is a type of projectile motion where motion of a freely falling object, the force is due to gravity and velocity changes with time.
Vertical
Parabolic
Trajectory
Horizontal
What is the path of a projectile?
Projectile
Projectile
Parabola
Trajectory
Which of the following is NOT a factor that affects projectile motion?
Time of Flight
Range
Speed
Max. Height
Two objects are released from the same height. Object A falls straight down from the cliff and object B follows a curved parabolic path. Which of the following is true in the situation?
A and B hit the ground at the same time.
A hits the ground first because if it is heavier than B
A hits the ground before B
B is heavier than A
A heavy object and a light object have the same momentum. Which has the greater speed?
both have the same speed
light object
heavy object
none
Which is equivalent to an impulse?
a force applied to an object for a period of time
the change in mass of an object.
a change in mass of the object
the original momentum of the object
Two identical cars are travelling along EDSA. Which of the two cars would have a greater momentum?
the slower car
both have the same momentum
the faster car
cannot be easily determine
A 25 kg girl is riding a 5-kg with a velocity of 5 m/s the East. What is the total momentum of the girl and the bike together?
100 kg m/s
125 kg m/s
150 kg m/s
200 kg m/s
In the table above, what is the momentum of the jeepney?
3500 kg m/s
35000 kg m/s
37500 kg m/s
45000 m/s
Which has greater momentum, the jeepney or the motorcycle?
jeepney
both have the same momentum
motorcycle
cannot be determined
The impulse experienced by a body is equal to the change in its:
velocity
kinetic energy
momentum
potential energy
A tennis player hits an approaching ball with a force of 800 N if she hits the ball in 0.003 s, how much impulse is imparted to the tennis ball?
1.2 Ns
2.4 Ns
3.6 Ns
4.8 Ns
A tennis player hits an approaching ball with a force of 800 N if she hits the ball in 0.003 s, if the force of the tennis player is twice. What is the impulse given by the player?
4.8 Ns
6.0 Ns
3.0Ns
1.5 Ns
What factor(s) affect how far a projectile will land?
initial velocity
Both angle and initial velocity
angle
None of the above
To solve problem projectile motion, you will work with the following variables except
object’s position
object’s mass
elapsed time
object’s final velocity
What is true about impulse and momentum?
Impulse deals with velocity while momentum deals with change in velocity
Impulse is mass times velocity while momentum is force times time
Momentum is the mass of a substance multiplied by the velocity while impulse is just the change of momentum
Momentum and impulse are unrelated to each other
What is the energy possessed by an object because of its position?
Kinetic energy
Potential energy
Radiant energy
Tension energy
