Understanding Gravity and Upthrush

What is gravity?

• Gravity is the force of attraction between objects with mass.

• Gravity is a type of energy that can be harnessed.

• Gravity is the force that repels objects away from each other.

• Gravity is the speed of light in a vacuum.

How does gravity affect objects on Earth?

• Gravity only affects large objects, not small ones like pebbles.

• Gravity has no effect on objects, allowing them to float freely.

• Gravity pulls objects toward the Earth, giving them weight and causing them to fall.

• Gravity pushes objects away from the Earth, making them lighter.

What is upthrush?

• A method of cooking.

• A species of fish.

• A type of bird call or vocalization.

• A type of musical instrument.

Can you give an example of upthrush in nature?

• Ocean currents in marine biology.

• Thermal updrafts in meteorology.

• Soil erosion in agriculture.

• Photosynthesis in plants.

How do gravity and upthrush work together?

• Gravity only affects objects in motion.

• Gravity pulls down while upthrust pushes up, determining an object's buoyancy.

• Upthrust is stronger than gravity in all cases.

• Gravity and upthrust work independently of each other.

What happens to an object when it is thrown upwards?

• The object continues to rise indefinitely without falling.

• The object rises until it reaches its highest point and then falls back down.

• The object transforms into energy and vanishes.

• The object instantly disappears when thrown upwards.

Why do balloons float in the air?

• Balloons float because they are made of rubber.

• Balloons float because they are filled with water.

• Balloons float due to the heat from the sun.

• Balloons float because they are filled with a lighter gas than air.

How does the weight of an object affect its fall?

• Heavier objects always fall slower than lighter ones.

• In a vacuum, heavier objects fall faster than lighter ones.

• Weight has no effect on the speed of falling objects in any environment.

• In a vacuum, weight does not affect the fall; in air, heavier objects may fall faster due to less relative air resistance.

What role does air play in upthrush?

• Air cools the water, affecting buoyancy in upthrush.

• Air provides buoyancy and support for upward movement in upthrush.

• Air absorbs nutrients necessary for upthrush.

• Air acts as a barrier preventing movement in upthrush.

Can you name a sport that involves gravity and upthrush?

• Skydiving

• Bungee Jumping

• Surfing

• Base Jumping