# Grade 9 Science at BCNHS 4th Quarter

## Quiz by Michelle

Science

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30 questions
• Q1
The motion of an object with constant acceleration is also known as:
motion
constant motion
uniform motion
uniformly accelerated motion
30s
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• Q2
Student X throws a ball straight up with an initial velocity of 10 m/s. What is the velocity at the highest point?
0 m/s2
9.8 m/s
-9.8 m/s2
0 m/s
30s
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• Q3
A bike accelerates uniformly from rest to a speed of 7.10 m/s, if the acceleration of the bike is 0.71 m/s2, determine the distance covered
71.58 m
48.99 m
35. 5 m
0.03 m
30s
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• Q4
A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car
20 m/s2
8.11 m/s2
0.12 m/s2
9.8 m/s2
30s
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• Q5
It is describe as speed in a given direction.
velocity
speed
distance
acceleration
30s
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• Q6
The path followed by a projectile.
velocity
parabola
trajectory
range
30s
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• Q7
At what angle should a water hose be aimed in order for the water to land with the greatest horizontal range?
45°
60°
30°
30s
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• Q8
A ball is hit at an angle of 30° and it reaches a distance of 50 m. Given the same initial velocity, at what other angle should a ball be hit to reach the same distance?
90o
60°
75°
15°
30s
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• Q9
A Batang pinoy athlete from your school throws a javelin, always at the same speed, at four different angles (30°, 40°, 60°, and 80°) above the horizontal. Which two throws cause the javelin to land the same distance away?
40° and 80°
30° and 80°
40° and 60°
30° and 60°
30s
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• Q10
A rock is thrown horizontally from the top of a cliff, 88 meters high and with a horizontal speed of 25 m/s. How far from the base of the cliff does the rock land?
2,200 m
280 m
106 m
306 m
30s
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• Q11
Given the same velocity of 30 km/h, which has greater momentum, a small car with a mass of 2000 kg or a cargo truck with a mass of 10,000 kg?
cannot be determined
cargo truck
light truck
both have the same momentum
30s
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• Q12
A skateboard is rolling at a velocity of 3.0 m/s with a momentum of 6.0 kg m/s. What is its mass?
0.5 kg
2 kg
18 kg
9 kg
30s
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• Q13
The impulse experienced by a body is equal to the change in its
Momentum
Potential energy
Velocity
Kinetic energy
30s
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• Q14
In certain martial arts, people practice breaking a piece of wood with the side of their bare hand. Use your understanding of impulse to explain how this can be done without injury to the hand.
Given the same change in momentum, when the time interval is bigger the impact force is smaller.
Given the same change in momentum, when the time interval is smaller the impact force is smaller.
Given the same change in momentum, when the time interval is bigger the impact force is bigger.
Given the same change in momentum, when the time interval is smaller the impact force is bigger.
30s
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• Q15
A lady tennis player hits an approaching ball with a force of 750 N If she hits the ball in 0.002 s, how much impulse is imparted to the tennis ball?
1.5 N s
3.0 N s
6.0 N s
0 N s
30s
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