Kinetic Energy
What is the formula of kinetic energy?
A) mgh
B) 1/2xv^2
C) 1/2mv^2
D) Dtv
C) 1/2mv^2
What common conic section is created by the motion of a projectile launch at an angle under the influence of gravity?
A) Arc
B) Parabola
C) Elipse
D) Circular parabolic
B) Parabola
What is electric charge?
A) A charge given on a current
B) Property of matter that experiences a force when placed in an electromagnetic field
C) Two charges that repeal each other
D) Two charges that attract each other
B) Property of matter that experiences a force when placed in an electromagnetic field
¿An object can store energy as the result of its position?
A) True
B) False
C) Maybe
A) True
Cuantos equipos militan en la Liga?
20
21
19
20
Kinetic energy is...
A) When something is moving
B) When something is at rest
C) When something is broken
D) When something is suspended on air
A) When something is moving
How does the time a projectile spends traveling upward compare with the time the same projectile spends returning to the Earth.
A) The same time
B) The time it is going up is more
C) The time it is falling is more
D) There is no time spent
A) The same time
When two objects have the same charge it will...
A) Repell
B) Atract
C) Move closer from each other
D) Gain neutrons
A) Repell
What is potential energy?
A) The state of being in motion
B) The energy an object has by staying in rest
C) Energy you have while falling from a cliff
D) When you are flying and then you fall
B) The energy an object has by staying in rest
What teams played the final last year on the Champions League?
A) Real vs Barça
B) Liverpool vs Juventus
C) Atlético M. vs Bayern
D) Real vs Liverpool
D) Real vs Liverpool
You drop a 5kg ball from a height of 2m. Just before it reaches the ground, what type of energy does it have?
A)Potential Energy
B) Kinetic Energy
C) Nuclear Energy
D) Chemical Energy
B) Kinetic Energy
For which angle the vertical height of projectile is the maximum?
A) 45 degrees
B) 90 degrees
C) 180 degrees
D) 95 degrees
B) 90 degrees
A rubber rod has a positive charge after being rubbed by a piece of wool. This is because...
A) Electrons have moved from the rod to the wool
B) Protons have moved from the wool to the rod
C) Electrons have moved from the wool to the rod
D) Protons have moved from the rod to the wool
A) Electrons have moved from the rod to the wool
If a red ball is higher than a blue ball and both balls have the same mass, which ball has more potential energy?
A) Red ball
B) Blue ball
C) They both have the same potential energy
D) Neither blue nor red
A) Red ball
What are 3 fortnite players.
A) Ninja, Ryux, Tfue
B) Ninja, Tfue, Undertaker
C) Grefg, Ninja, Peter J.
D) Tfue, Apex, Ryux
A) Ninja, Ryux, Tfue.
A 70kg runner has a velocity of 5m/s her kinetic energy is...
A) 225J
B) 370J
C) 1750J
D) 1500J
C) 1750J
How can you calculate the projectile motion at an angle.
A) Resolve the final velocity into its horizontal and vertical components.
B) First resolve the initial velocity into its horizontal and vertical components.
C) First resolve the velocity into its components (vertical and horizontal)
B) First resolve the initial velocity into its horizontal and vertical components.
If we rub a rubber against a piece of fur the rod gains a negative change. Why does the rod have a negative charge?
A) The fur gains electrons from the rod
B) The rod looses electrons from the fur
C) The rod gains electrons from the fur
D) The fur will be destroyed
C) The rod gains electrons from the fur
What is the unit for energy?
A) Ampere
B) Jouls
C) Watt
D) Newton
B) Jouls
What does the prefix d represents?
A) x10^9
B) x10^6
C) x10^4
D) x10^-1
D) x10^-1
Which of the following objects has the most kinetic energy?
A) A 20kg toddler running at 5m/s
B) A 50kg toddler running at 30m/s
C) A 90kg toddler running at 30m/s
D) A 100kg toddler running at 2m/s
Which of these is the correct formula for the maximum range of an angular projectile?
A) V/g^2
B) V^2/g^2
C) G^2/v
D) V^2/g
D) V^2/g
... discharge occurs when oppositely charged objects get close enough for the air between them to become electrically charged
A) Static
B) Electrical
C) Negative
D) Positive
A) Static
Gravitational potential energy is the potential energy of an object based on its...
A) Weight and velocity
B) Height and acceleration
C) Height and mass
D) Mass and speed
C) Height and mass
En que año se fundó la Liga?
A) 1933
B) 1953
C) 1910
D) 1929
D) 1929