Motion of Moon

Q.

Keplers second law states that the straight line joining the planet to the sun sweeps out equal areas at equal times. This statement is equivalent to saying that

1. Total acceleration is zero

2. Tangential acceleration is zero

3. Longitudinal acceleration is zero

4. Radial acceleration is zero

Q.

Explain Coriolis force.

Q.

Since in space there is no friction, so if a body is given a force once then does it stop or does it continues to move or do work without stopping forever (until something stops it )?

Q. Under which of the following type of resources tidal energy cannot be put ? (a) Replenishable (b) Abiotic (c) Human-made (d) Non-recyclable

Q.

Newton's second law of motion is based on the conservation of ___ .

Q.

Choose the correct answer regarding the weight of an object.

1. Weight of an object on the Earth is different from the weight of the same object on the moon.

2. All of these.

3. Weight on Earth is the force of attraction of Earth on that object.

4. Weight pulls the object downward.

Q. Under which of the following type of resources tidal energy cannot be put ? (a) Replenishable (b) Abiotic (c) Human-made (d) Non-recyclable

Q. Which of the following is involved in moon's motion around the earth?

1. Newton's First Law of Motion
2. Centripetal Force
3. Uniform Motion
4. Newton's Third Law of Motion

Q. Why is it said that dark matter or anti gravity can curve light?

Q. Which tides occur when gravitational forces of Moon and Sun are perpendicular to one another?

1. Spring Tides
2. Neap Tides
3. Summer Tides
4. Monsoon Tides

Q. The type of Gravitational Force that causes tides is known as:

1. Nuclear Force
2. Tractive Force
3. Tidal Force
4. Wave Force

Q.

Weight of a box is 49 Newton. Calculate the mass of the box?

Q.

What conclusion did the Chandrayaan derive from the Terrain Mapping Camera?

Q. Time interval between a high tide and low tides is:

1. $3hrs6min$
2. $6hrs12min$
3. $12hrs24min$
4. $9hrs18min$

Q. What are known as neap tides?

1. When sun and moon are not aligned tides are not as high and low
2. When sun and moon are not aligned tides are as high and low
3. None
4. When sun and moon are aligned tides are not as high and low

Q. State whether True or False:

1. True
2. False

Q. The Sun's tide-raising power is only half as great as that of the Moon. The direct pull of the Sun on the earth, however, is about $175$ times that of the Moon. Why is it then that the Moon causes larger tides?

Q.

Temperature difference required between the water at the surface and water at depths up to 2 km to operate ocean thermal conservation plants is

1. 10 to 15^oC

2. 20^oC and more

3. 15^oC to 20^oC

4. 50^oC

Q. The gravitational pull of the Moon causes:

1. tides on the Earth
2. storms on the Earth
3. phases of the Moon
4. seasonal changes of the Earth

Q. Tides are not caused by the direct pull of the moon's gravity. Is the statement true or False

1. True
2. False

Q. Why are low tides dangerous?

1. They have extremely high kinetic energy.
2. They are unpredictable.
3. They drains objects inside the sea.
4. They are scary.

Q. Compared to the lunar maria, the lunar uplands (terrae) are:

1. smoother, younger
2. smoother, older
3. more cratered, older
4. more cratered, younger

Q. The deflection of light in a gravitational field was predicted first by

1. Einstein
2. Newton
3. Maxwell
4. Max Planck

Q. How many times a day do high tides occur?

1. $1$
2. $2$
3. $3$
4. $4$

Q.

State Newton’s second law of motion.

Q. Each day how many high and low tides are there?

1. 2 high tides and 2 low tides
2. 1 high tide and 1 low tide
3. 1 high tide and 2 low tides
4. 2 high tides and 1 low tide

Q. Tides are caused by ______ .

1. Gravitational pull of Earth
2. Movement of large ships
3. Gravitational pull of Moon
4. None of these

Q. When is the moon nearest to Earth during its orbit?

1. At apogee
2. At perihelion
3. During an eclipse
4. During perigee

Q. Which of the following diagram represents neap tide ?
Select the correct alternative.

1. 'A' only
2. Neither A nor B
3. 'B' only
4. Both A and B

Q. Why are high tides and low tides in the sea ?