When does tides rise in sea?

The tides in the sea are primarily due to

A

the atmospheric effect of the Earth

B

the gravitational effect of Venus on the Earth

C

the gravitational effect of the Sun on the Earth

D

the gravitational effect of the Moon on the Earth

Tides in the sea have stored in them ________

A

Hydraulic energy

B

Kinetic energy

C

Gravitational potential energy

D

A combination of all the above three forms of energy

Sea tides show variations because of ________

A

Variations in gravitational pull of the moon

B

Variations in gravitational pull of the sun

C

Distorted spherical shape of the earth

D

Different phases of the moon

A delivery car went from Candleford to Lark Rise and back at an average speed of23 miles per hour. If the distance from Candleford to Lark Rise is 1 mile, and the trip back too half as much time as the trip there, what was the average speed of the delivery car on the way to Lark Rise?

A

13

B

34

C

12

D

23

A delivery cart went from Candle ford to Lark Rise and back at an average speed of 2/3 miles per hour. If the distance from Candle ford to Lark Rise is 1 mile, and the trip back took half as much time as the trip there, what was the average speed of the delivery cart on the way to Lark Rise?

A

1/3

B

3/4

C

1/2

D

2/3

Tides are caused by the

A

gravitational attraction of the sun & the moon on earth's surface

B

earthquakes

C

violent winds

D

volcanoes

Tides are caused by the -

A

gravitational attraction of the sun & the moon on earth's surface

B

earthquakes

C

violent winds

D

volcanoes

প্রবল জোয়ারের কারণ কোনটি? (Which is the cause of high tides )

A

চন্দ্র পৃথিবীর সবচেয়ে কাছে থাকে (Moon is the closest to Earth)

B

চন্দ্র-সূর্যের সমকৌণিক অবস্থান (Moon-Sun equiangular position)

C

পৃথিবী সূর্যের সবচেয়ে কাছে থাকে (Earth is the closest to Sun)

D

চন্দ্র, সূর্য ও পৃথিবী একই সরলরেখায় থাকে (Moon, Sun and Earth are in the same straight line)

Tides are caused by the gravitational forces of

A

Of Earth on Moon

B

Of Earth on Sun

C

Of Sun and Moon on Earth

D

Of Moon on Earth

Spring tides are caused when

A

Sun and moon are in line with earth

B

Solar tidal force acts opposite to lunar tidal force

C

Solar tidal force and lunar tidal force both coincide

D

None of these

When does tides rise in sea?

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