what is the function of purchase form,medical form,deposito slip,reservation form,withdrawl form? help me to answer this ;)

I just wanna help. Hope it is the right answer.
1. Purchase form : Form is used for buying something
2. Medical form : Form is used for applying medical check up
3. Deposito slip : Paper is used for saving your money on deposito program
4. Reservation form : Form is used for reservating room at the hotel
5. Withdrawl form : Form is used for withdrawing your money to your bank account or get your money cash