Understanding Gravity

What is gravity?

• Gravity is the temperature of an object in space.

• Gravity is the speed at which objects fall to the ground.

• Gravity is the force that attracts two bodies with mass towards each other.

• Gravity is a type of energy that powers the universe.

How does gravity affect objects on Earth?

• Gravity only affects large objects like planets.

• Gravity has no effect on the motion of objects.

• Gravity causes objects to be pulled towards the Earth, giving them weight and affecting their motion.

• Gravity pushes objects away from the Earth.

Can you name a planet where gravity is stronger than on Earth?

• Jupiter

• Mars

• Venus

• Mercury

What happens to objects when they fall due to gravity?

• Objects slow down as they fall due to gravity.

• Objects float away from the Earth due to gravity.

• Objects accelerate towards the Earth due to gravity.

• Objects remain stationary regardless of gravity.

How does gravity keep the Moon in orbit around Earth?

• The Moon orbits Earth due to its own gravitational pull.

• Gravity keeps the Moon in orbit around Earth by exerting a force that pulls the Moon towards Earth, balancing its inertia.

• The Moon's orbit is maintained by solar wind pushing it away.

• The Moon is held in orbit by magnetic forces from Earth.

What would happen if there was no gravity on Earth?

• Objects would become heavier and more difficult to lift.

• Life would thrive in a state of constant motion and energy.

• Gravity would increase, causing everything to be pulled down harder.

• If there was no gravity on Earth, life would be unsustainable and everything would float away.

How does gravity affect the tides in the ocean?

• Tides are influenced only by atmospheric pressure changes.

• Gravity from the moon and sun causes ocean tides by pulling water towards them, creating high and low tides.

• Ocean currents are the primary factor in determining tides.

• Tides are caused by the rotation of the Earth alone.

Can you explain why we feel weight when standing on the ground?

• We feel weight because of the Earth's rotation pushing us outward.

• We feel weight due to the air pressure pushing us down.

• We feel weight because of the gravitational force acting on our mass, countered by the normal force from the ground.

• Weight is caused by the friction between our feet and the ground.

What role does gravity play in keeping us on the ground?

• Gravity keeps us on the ground by pulling us towards the Earth's center.

• Gravity only affects objects in space.

• Gravity pushes us away from the Earth.

• Gravity has no effect on our position.

How does gravity differ on different planets?

• Lighter planets have stronger gravity than heavier ones.

• Gravity is the same on all planets regardless of mass.

• Gravity only exists on Earth and not on other planets.

• Gravity is stronger on more massive planets and weaker on less massive ones.