Problem Analysis:
The task requires identifying whether the forces depicted in each image are
gravity or
friction. Let's analyze each image step by step.
---
Image 1: Falling Apple
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Description: An apple is falling from a tree.
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Force Involved: The apple is falling due to the pull of Earth's gravity.
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Explanation: Gravity is the force that attracts objects toward the center of the Earth. In this case, it causes the apple to fall.
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Answer:
a) Gravity
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Image 2: Skiing and Running
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Description: Two people are skiing down a slope (Person A) and running on flat ground (Person B).
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Force Involved: Friction is involved here because:
- Person A is skiing down a slope, and friction between the skis and the snow affects their speed.
- Person B is running on the ground, and friction between their shoes and the ground helps them move forward.
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Explanation: While gravity might be influencing the skier's motion down the slope, the primary focus here is on the interaction between surfaces (skis/snow and shoes/ground), which is friction.
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Answer:
b) Friction
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Image 3: Pulling an Object with a String
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Description: A person is pulling an object using a string.
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Force Involved: Gravity is involved because the object being pulled is affected by Earth's gravitational force.
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Explanation: The person is lifting the object against gravity. The action of pulling the object upward demonstrates the effect of gravity.
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Answer:
a) Gravity
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Image 4: Bowling
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Description: A person is bowling, rolling a ball down a lane.
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Force Involved: Friction is involved here because:
- The ball rolls on the bowling lane, and friction between the ball and the lane surface affects its motion.
- The ball slows down as it moves due to friction.
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Explanation: Gravity is present but not the primary force being demonstrated in this scenario. The focus is on the interaction between the ball and the lane surface.
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Answer:
b) Friction
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Image 5: People Jumping Around the Earth
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Description: People are shown jumping around the Earth.
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Force Involved: Gravity is involved because the people are being pulled toward the Earth.
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Explanation: Gravity is the force that keeps objects (including people) near the surface of the Earth. Without gravity, the people would float away into space.
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Answer:
a) Gravity
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Image 6: Sliding Down a Slide
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Description: A child is sliding down a slide.
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Force Involved: Both gravity and friction are involved, but the primary force causing the child to slide down is gravity.
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Explanation: Gravity pulls the child downward, while friction between the child and the slide surface slows them down. However, the main reason the child slides down is the pull of gravity.
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Answer:
a) Gravity
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Final Answers:
1. Falling Apple:
a) Gravity
2. Skiing and Running:
b) Friction
3. Pulling an Object with a String:
a) Gravity
4. Bowling:
b) Friction
5. People Jumping Around the Earth:
a) Gravity
6. Sliding Down a Slide:
a) Gravity
Boxed Final Answer:
\[
\boxed{
\begin{array}{ll}
1. & \text{a) Gravity} \\
2. & \text{b) Friction} \\
3. & \text{a) Gravity} \\
4. & \text{b) Friction} \\
5. & \text{a) Gravity} \\
6. & \text{a) Gravity} \\
\end{array}
}
\]
Parent Tip: Review the logic above to help your child master the concept of friction and gravity worksheets.
