State whether the following statements are true or false :
Every object moves with a constant speed.

Answer

To determine whether the statement "Every object moves with a constant speed" is true or false, we can analyze the concept of motion and speed. Here’s a step-by-step solution:

### Step-by-Step Solution:

1. **Understanding Speed**: Speed is defined as the distance traveled by an object in a given amount of time. It can be constant or variable.

2. **Constant Speed**: An object is said to be moving with constant speed if it covers equal distances in equal intervals of time, regardless of how small those intervals are.

3. **Variable Speed**: If an object does not cover equal distances in equal intervals of time, it is said to be moving with variable speed. This means that the speed of the object is changing over time.

4. **Acceleration**: When an object speeds up or slows down, it experiences acceleration. Acceleration is defined as the rate of change of velocity (which includes speed) with respect to time.

5. **Conclusion**: Not every object moves with a constant speed. Many objects experience changes in speed due to various factors, such as forces acting on them (like gravity, friction, etc.). Therefore, the statement "Every object moves with a constant speed" is false.

### Final Answer:
The statement "Every object moves with a constant speed" is **False**.

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