plastic ruler - When you bend a plastic ruler, it's size will increase because it is elastic and will exhibit elastic deformation. When it is been bent, it will continue to stretch until it get to a point where it will not be able to regain it formal shape, it size wound of increase.

electric wire - If a wire is bent to form loops, it acts as an inductor. Each loop of the inductor exhibits a capacitance effect with the next loop. That is, a bent wire will exhibit all three properties: inductance, resistance and capacitance. So, explicitly, the resistance of the wire doesn't change when you bend it.

metal spoon - When the metal spoon was bent, it changed its physical appearance and the spoon appeared to be bent. This process is often referred to as undergoing physical change since only the characteristics or physical appearance of an object change. The molecules remain as is. It is also possible to revert back the object to its original form.

paper clip - Assuming it is made of a flexible/ductile material like a steel wire or nylon (which it should be being a paperclip), the lateral forces exerted on one side of it will force that side to bend away.

rubber slippers - The rubber slippers will be crooked and will slowly go back to its rest position

tie wire - If a wire is bent to form loops, it acts as an inductor. Each loop of the inductor exhibits a capacitance effect with the next loop. That is, a bent wire will exhibit all three properties: inductance, resistance and capacitance. So, explicitly, the resistance of the wire doesn't change when you bend it.

hope this helps :-)