Directions: Use the information provided and your knowledge of Physical Science to answer the following questions. Show all work where necessary.
Directions: Use the information provided and your knowledge of Physical Science to answer the following questions. Show all work where necessary.
In a tug-of-war game, sometimes the rope stays in the center without moving. At other times, one team pulls the other team forward. This shows how balanced forces keep objects still, while unbalanced forces cause objects to move.
Tug-of-war is a fun and simple way to explore how forces affect motion. A force is a push or a pull. In tug-of-war, both teams pull on the same rope. If the two teams pull with the same amount of force, the rope does not move. These are called balanced forces. Even though both teams might be pulling as hard as they can, the forces cancel each other out. Because the forces are balanced, the rope stays in place.
If one team pulls harder than the other, the forces become unbalanced. This causes the rope to move toward the stronger team. The greater the difference between the two pulling forces, the faster the rope will move. This is why a very strong team can move the rope quickly, while teams of similar strength may hardly move it at all.
Friction also plays a role. The players’ shoes push against the ground, and friction helps them stay in place. If a team slips or loses footing, the friction force weakens, and the rope may suddenly jerk forward. By observing how the rope behaves, we can learn when forces are balanced and when they are not.
Source: https://theory.labster.com/balanced-and-unbalanced-forces/
Table 1.
Team | Force (N) | Condition | Rope Position (cm) |
|---|---|---|---|
Team A | 120 | Balanced | 0 |
Team B | 120 | Balanced | 0 |
Team A | 135 | Unbalanced | 12 |
Team B | 110 | Unbalanced | 28 |
In a tug-of-war game, when both teams pull with the same amount of force, what happens to the rope?
Look at Table 1. What is the rope position when Team A and Team B each pull with 120 N of force?
Based on the table and graphs, what happens to the rope when one team pulls harder than the other?
Which situation shows unbalanced forces acting on the rope?
How do balanced and unbalanced forces affect the motion of the rope in a tug-of-war game?
Claim: Explain in one or two sentences what balanced and unbalanced forces do to the rope.
Evidence: Use data from the table or graphs to support your claim.
Reasoning: Explain why the evidence shows the effect of balanced and unbalanced forces.
According to the reading, how does friction affect the players during tug-of-war?