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The hypothesis for this experiment states that if the ramp is placed higher, the ball will travel to the bottom faster. In the image, different ramp heights are shown, and the goal is to compare three tests to evaluate this hypothesis.

### Explanation:
- Higher ramps will result in a faster rolling ball due to greater gravitational potential energy being converted into kinetic energy.
- The ramps numbered **2, 4, and 5** in the diagram seem to have progressively increasing heights, making these the appropriate choices for testing the hypothesis that a higher ramp increases speed.
- **Option B: 2, 4, and 5** is the correct answer, as these represent different ramp heights necessary to observe the changes in speed.

Would you like more details on this explanation or have any questions?

Here are some questions you might want to consider next:
1. Why does height affect the speed of the ball on a ramp?
2. How does gravitational potential energy play a role in this experiment?
3. What formula relates potential energy to the height of the ramp?
4. How can we calculate the speed of the ball after it reaches the bottom?
5. What are other factors, like friction, that could affect the results?

**Tip:** In physics, a higher object has more potential energy, which is converted into kinetic energy as it moves downward.

If the ramp is placed higher, will the ball travel to the bottom faster? Which three tests should be compared to test this idea?

Explore the relationship between ramp height and ball speed in a physics experiment. Understand how gravitational potential energy converts into kinetic energy, and how higher ramps result in faster speeds. Suitable for Grades 6-8 students.

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