Question
1 sentence
Define gravity:
Define air resistance:
What is it called when speed increases?
When the force of air resistance is equal to the force of gravity, an object will stop accelerating and fall at a constant speed. What is this called?
What happens when a skydiver opens their parachute?
What will fall faster- a plain piece of paper of a piece of paper crumpled into a ball? Explain why.
On Earth, a feather will fall more slowly than a rock when they are dropped at the same time. On the moon, the feather and rock will fall at the same speed. Why is there a difference in speed on Earth, but not on the moon?
What could a skydiver do to slow down their fall?
Define gravity:
Define air resistance:
What is it called when speed increases?
When the force of air resistance is equal to the force of gravity, an object will stop accelerating and fall at a constant speed. What is this called?
What happens when a skydiver opens their parachute?
What will fall faster- a plain piece of paper of a piece of paper crumpled into a ball? Explain why.
On Earth, a feather will fall more slowly than a rock when they are dropped at the same time. On the moon, the feather and rock will fall at the same speed. Why is there a difference in speed on Earth, but not on the moon?
What could a skydiver do to slow down their fall?
Answers
Answered by
GPT-4o mini
**Define gravity:** Gravity is the attractive force that pulls two objects toward each other, commonly experienced as the force that attracts objects toward the center of the Earth.
**Define air resistance:** Air resistance is the force that opposes the motion of an object through the air, caused by the friction between the object and air molecules.
**What is it called when speed increases?** When speed increases, it is referred to as acceleration.
**When the force of air resistance is equal to the force of gravity, an object will stop accelerating and fall at a constant speed. What is this called?** This phenomenon is called terminal velocity.
**What happens when a skydiver opens their parachute?** When a skydiver opens their parachute, air resistance dramatically increases, slowing their descent and allowing for a safer landing.
**What will fall faster- a plain piece of paper or a piece of paper crumpled into a ball? Explain why.** A piece of paper crumpled into a ball will fall faster than a plain piece of paper because the ball has a smaller surface area relative to its weight, resulting in less air resistance acting upon it.
**On Earth, a feather will fall more slowly than a rock when they are dropped at the same time. On the moon, the feather and rock will fall at the same speed. Why is there a difference in speed on Earth, but not on the moon?** The difference in speed on Earth is due to air resistance, which affects the feather more than the rock, while the Moon has negligible atmosphere, resulting in no air resistance acting on either object.
**What could a skydiver do to slow down their fall?** A skydiver could slow down their fall by spreading their arms and legs to increase surface area and maximize air resistance, or by using a parachute to create additional drag.
**Define air resistance:** Air resistance is the force that opposes the motion of an object through the air, caused by the friction between the object and air molecules.
**What is it called when speed increases?** When speed increases, it is referred to as acceleration.
**When the force of air resistance is equal to the force of gravity, an object will stop accelerating and fall at a constant speed. What is this called?** This phenomenon is called terminal velocity.
**What happens when a skydiver opens their parachute?** When a skydiver opens their parachute, air resistance dramatically increases, slowing their descent and allowing for a safer landing.
**What will fall faster- a plain piece of paper or a piece of paper crumpled into a ball? Explain why.** A piece of paper crumpled into a ball will fall faster than a plain piece of paper because the ball has a smaller surface area relative to its weight, resulting in less air resistance acting upon it.
**On Earth, a feather will fall more slowly than a rock when they are dropped at the same time. On the moon, the feather and rock will fall at the same speed. Why is there a difference in speed on Earth, but not on the moon?** The difference in speed on Earth is due to air resistance, which affects the feather more than the rock, while the Moon has negligible atmosphere, resulting in no air resistance acting on either object.
**What could a skydiver do to slow down their fall?** A skydiver could slow down their fall by spreading their arms and legs to increase surface area and maximize air resistance, or by using a parachute to create additional drag.