Gravity and the Universe

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, depending on their masses and the distance between them.

Front

What happens to gravitational force as distance increases?

Back

The gravitational force decreases as the distance between two objects increases.

Front

What are the two main factors that affect the strength of gravitational force?

Back

The strength of gravitational force depends on mass and distance.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What type of tide occurs when the sun, moon, and Earth are aligned?

Back

A spring tide occurs when the sun, moon, and Earth are aligned, resulting in higher high tides and lower low tides.

Front

What type of tide occurs when the sun and moon are at right angles to each other?

Back

A neap tide occurs when the sun and moon are at right angles to each other, causing lower high tides and higher low tides.

Front

How does mass affect gravitational force?

Back

The greater the mass of an object, the stronger its gravitational pull.

Front

What is the relationship between mass and distance in terms of gravitational force?

Back

Gravitational force is directly proportional to the product of the masses and inversely proportional to the square of the distance between them.

Front

What keeps the Earth in orbit around the sun?

Back

Inertia and the gravitational pull of the sun keep the Earth in orbit.

Front

What is the formula for calculating gravitational force?

Back

The formula for gravitational force is F = G * (m1 * m2) / r^2, where F is the force, G is the gravitational constant, m1 and m2 are the masses, and r is the distance between the centers of the two masses.