Question

cause
effect
cause
effect
gravity is an outside force that acts on objects, pulling them toward each other.
effect
cause
effect
details
the rougher a surface, the more friction.
a remote control car slows down when it moves from the sidewalk into the sand.
the less friction, the faster an object can move.
when you jump on a trampoline, your body comes back down.
gravity pulls objects downward and friction slows their speed.
a bowling ball rolls quickly down a bowling lane.
plushs race car sped down the hill, but slowed down and stopped at the bottom.

Explanation:

To solve the cause - effect matching for the gravity - related folder:

Step 1: Analyze the cause (gravity's definition)

The given cause is "Gravity is an outside force that acts on objects, pulling them toward each other." This describes what gravity is.

Step 2: Identify the effect of gravity from the details

We look through the details for an event that happens because of gravity. The statement "When you jump on a trampoline, your body comes back down" occurs because gravity pulls the body downward. Also, "Plush's race car sped down the hill, but slowed down and stopped at the bottom" has a component of gravity pulling the car down the hill (though friction also acts here). But the most direct effect related to the pull of gravity (as per the cause's description of pulling objects toward each other, specifically downward towards the Earth in these cases) among the options is "When you jump on a trampoline, your body comes back down" or "Plush's race car sped down the hill, but slowed down and stopped at the bottom". If we take the trampoline example:

The cause is the nature of gravity (pulling objects toward each other), and the effect is the body coming back down after jumping on the trampoline due to gravity's pull.

For the friction - related cause - effect pairs:

Case 1: Cause - "The rougher a surface, the more friction"

Step 1: Understand the cause

This cause is about how surface roughness relates to friction (more roughness means more friction).

Step 2: Find the effect

The effect would be a situation where a change in surface (to a rougher one) causes a change in motion due to increased friction. The statement "A remote control car slows down when it moves from the sidewalk into the sand" is an effect of this cause because the sand is rougher than the sidewalk, so there is more friction, which slows the car down.

Case 2: Cause - "The less friction, the faster an object can move"

Step 1: Understand the cause

This is about the inverse relationship between friction and speed (less friction allows faster movement).

Step 2: Find the effect

The effect is "A bowling ball rolls quickly down a bowling lane" because a bowling lane is designed to have low friction, allowing the ball to roll quickly.

Case 3: Cause - "Gravity pulls objects downward and friction slows their speed"

Step 1: Understand the cause

This cause combines the effects of gravity (pulling down) and friction (slowing speed).

Step 2: Find the effect

The effect is "Plush's race car sped down the hill, but slowed down and stopped at the bottom" because gravity pulls the car down the hill (making it speed up initially) and friction slows it down until it stops.

Final Answers for Each Folder:

• Gravity - related folder (cause: Gravity is an outside force...):
• Effect: When you jump on a trampoline, your body comes back down (or Plush's race car sped down the hill, but slowed down and stopped at the bottom)
• Friction - "The rougher a surface...":
• Effect: A remote control car slows down when it moves from the sidewalk into the sand
• Friction - "The less friction...":
• Effect: A bowling ball rolls quickly down a bowling lane
• Combined (gravity and friction - "Gravity pulls..."):
• Effect: Plush's race car sped down the hill, but slowed down and stopped at the bottom

Answer:

To solve the cause - effect matching for the gravity - related folder:

Step 1: Analyze the cause (gravity's definition)

The given cause is "Gravity is an outside force that acts on objects, pulling them toward each other." This describes what gravity is.

Step 2: Identify the effect of gravity from the details

We look through the details for an event that happens because of gravity. The statement "When you jump on a trampoline, your body comes back down" occurs because gravity pulls the body downward. Also, "Plush's race car sped down the hill, but slowed down and stopped at the bottom" has a component of gravity pulling the car down the hill (though friction also acts here). But the most direct effect related to the pull of gravity (as per the cause's description of pulling objects toward each other, specifically downward towards the Earth in these cases) among the options is "When you jump on a trampoline, your body comes back down" or "Plush's race car sped down the hill, but slowed down and stopped at the bottom". If we take the trampoline example:

The cause is the nature of gravity (pulling objects toward each other), and the effect is the body coming back down after jumping on the trampoline due to gravity's pull.

For the friction - related cause - effect pairs:

Case 1: Cause - "The rougher a surface, the more friction"

Step 1: Understand the cause

This cause is about how surface roughness relates to friction (more roughness means more friction).

Step 2: Find the effect

The effect would be a situation where a change in surface (to a rougher one) causes a change in motion due to increased friction. The statement "A remote control car slows down when it moves from the sidewalk into the sand" is an effect of this cause because the sand is rougher than the sidewalk, so there is more friction, which slows the car down.

Case 2: Cause - "The less friction, the faster an object can move"

Step 1: Understand the cause

This is about the inverse relationship between friction and speed (less friction allows faster movement).

Step 2: Find the effect

The effect is "A bowling ball rolls quickly down a bowling lane" because a bowling lane is designed to have low friction, allowing the ball to roll quickly.

Case 3: Cause - "Gravity pulls objects downward and friction slows their speed"

Step 1: Understand the cause

This cause combines the effects of gravity (pulling down) and friction (slowing speed).

Step 2: Find the effect

The effect is "Plush's race car sped down the hill, but slowed down and stopped at the bottom" because gravity pulls the car down the hill (making it speed up initially) and friction slows it down until it stops.

Final Answers for Each Folder:

• Gravity - related folder (cause: Gravity is an outside force...):
• Effect: When you jump on a trampoline, your body comes back down (or Plush's race car sped down the hill, but slowed down and stopped at the bottom)
• Friction - "The rougher a surface...":
• Effect: A remote control car slows down when it moves from the sidewalk into the sand
• Friction - "The less friction...":
• Effect: A bowling ball rolls quickly down a bowling lane
• Combined (gravity and friction - "Gravity pulls..."):
• Effect: Plush's race car sped down the hill, but slowed down and stopped at the bottom