Circular Motion
Newton's law of Gravitation
Alp
Describing Fields
Fields of Work
100
Sideways friction between the tires and the track.
What is friction?
100
The gravitational field strength at the surface of Earth is g. Another planet has a double the radius of Earth and the same density as Earth. What is the gravitational field strength at the surface of this plant?
What is 2g??????
100
What is love?
What is Baby don't hurt me?
100
Corresponds to a surplus of electrons in an object
What is Negative charge?
100
Velocity required to escape earth's gravitational field
What is escape velocity?
200
The time taken to complete one revolution; rotate through 2pi radian, and has SI units of seconds.
The period, T
200
The radius of the Earth is 6.4*10^6m. What is the centripetal acceleration due to the spinning Earth experienced by someone on the equator?
What is 0/.03ms-2?
200
What is Alps favorite carbonated water?
Kizilay
200
Force which is always attractive
What is the Gravitational force?
200
8.99*10^9
What is the value for Coulomb Constant?
300
A particle of mass m is moving with constant speed v in uniform circular motion. What is the total work done by the centripetal force during one revolution?
What is zero?
300
Outline why Phobos moves with uniform circular motion.
Gravitational provides centripetal force / gravitational provides force towards centre; (because radius is implied constant) (centripetal) force is constant;
300
traditional monster from German Folklore that appeared in the famous German painting
"Nachtmahr"
by Johann Heinrich Füssli (1802)
Alp??????????????/?1
300
Controls the behavior of atoms and molecules?
What is the Electric force?
300
On a graph of electric potential against distance, what feature marks a point where there is no resultant electric force?
A maximum or minimum point on a graph of electric potential against distance.
400
A probe of mass m is in a circular orbit of radius r around a spherical planet of mass M.
State why the work done by the gravitational force during one full revolution of the probe is zero.
Because the force is always at right angles to the velocity / motion/orbit is an equipotential surface;
400
The Earth is a distance from the Sun. The Moon is a distance from the Earth. The ratio
(gravitational field strength at the Earth due to the Sun)
/
(gravitational field strength at the Earth due to the Moon) is proportional to?
rM2 / rs2
400
Satan's book
What is the Maths AA HL Syllabus?
400
Regions where charges can move without work being done on or by the charge
What are equipotential surfaces?
400
The work done in moving a small test mass from infinity to that point.
What is the definition of gravitational potential energy?
500
An object at the end of a wooden rod rotates in a vertical circle at a constant angular velocity. What is correct about the tension in the rod?
What is it is greatest when the object is at the bottom of the circle.
500
Phobos, a moon of Mars, has an orbital period of 7.7 hours and an orbital radius of 9.4x103km, Deduce the mass of Mars.
What is 6.39 × 10^23 kg?
500
Calculate
500
The graph of gravitational field strength against distance from the center of the object.
What graph involving gravitational field strength increases linearly then decreases exponentially?
500
√2GM/r
What is the formula for escape velocity?