explain how electrical energy is generated, transmitted, and distributed
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Q 1/30
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The motion of an object with constant acceleration is also known as:
30
motion
constant motion
uniform motion
uniformly accelerated motion
Q 2/30
Score 0
Student X throws a ball straight up with an initial velocity of 10 m/s. What is the velocity at the highest point?
30
0 m/s2
9.8 m/s
-9.8 m/s2
0 m/s
30 questions
Q.
The motion of an object with constant acceleration is also known as:
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Q.
Student X throws a ball straight up with an initial velocity of 10 m/s. What is the velocity at the highest point?
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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
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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
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It is describe as speed in a given direction.
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The path followed by a projectile.
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Q.
At what angle should a water hose be aimed in order for the water to land with the greatest horizontal range?
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Q.
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?
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Q.
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?
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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?
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Q.
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?
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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?
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Q.
The impulse experienced by a body is equal to the change in its
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Q.
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.
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Q.
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?
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Q.
2 identical cars are travelling along EDSA. Which of the 2 cars would have a greater momentum?
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Q.
A feather is dropped on the moon from a height of 1.40 meters. The acceleration of gravity on the moon is 1.67 m/s2. Determine the time for the feather to fall to the surface of the moon.
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Q.
A bullet is fired from a gun mounted at an angle of 45°. If the muzzle velocity is 400 m/s, calculate the vertical velocity component.
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Q.
A trash is thrown horizontally from the top of a building 5.4 m high, with a horizontal speed of 20 m/s. In what angle does the trash thrown?
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Q.
Which is a necessary condition for the total momentum of a system to be conserved?
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Two billiard balls approach each other at equal speed. If they collide in a perfectly elastic collision, what would be their velocities after collision?
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Two iceskaters stand together. They âpush offâ and travel directly away from each other, the boy with a velocity of 1.50 m/s. If the boy weighs 735 N and the girl, 490 N, what is the girlâs velocity after they push off? (Consider the ice to be frictionless.)
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What type of collision happens when the total kinetic energy of the system does not change and colliding objects bounce off after collision?
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What is the energy of a motorcycle moving slowly at the top of a hill?
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Which event is explained in the sequence of energy changes shown ? Chemical energy -> Heat -> Mechanical energy
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Q.
A 120 J of energy is added to a system that does 40 J of external work, by how much thermal energy of the system is raised?
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Q.
In power stations generating electricity, power is measured in
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Q.
What energy transformation takes place in a generator?
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Q.
Who among the following scientists discovered the relationship between electricity and magnetism?