Hot objects do not always accelerate because their acceleration is dependent on their mass, not their temperature. According to Newton's second law of motion, the force acting on an object is equal to its mass multiplied by its acceleration. So, even if an object is hot, it will not accelerate unless an external force is acting on it.
Yes, hot objects can accelerate if an external force is acting on them. For example, if a hot object is placed on a slope, it will accelerate down the slope due to the force of gravity.
We may see hot objects accelerate in certain situations because they are already in motion due to an external force. For example, if a hot air balloon is rising due to the heat of the air inside, it may appear to be accelerating even though the force of gravity is acting against it.
No, the temperature of an object does not affect its acceleration. As mentioned before, acceleration is determined by an object's mass and the external forces acting on it, not its temperature.
The temperature of an object can affect its motion indirectly by influencing the behavior of the molecules or particles within the object. For example, if a hot object is dropped in a cold environment, the molecules in the object will cool down and become less active, causing the object to slow down due to a decrease in kinetic energy.