Answer: The answer is "Torque"
Explanation:
Torque is a turning effect of a force applied at distance. This is the force that helps in the tightening and loosening of elements such as bolts and screws. So, if you need to insert a screw in a piece of wood to drive it in, the force you need to apply using a screwdriver is called Torque. Therefore, the answer is "Torque"
Answer of question 6:
The mark seen on the picture is called: crescendo.
Explanation:
It is an Italian term mark that means gradually getting louder.
As we can notice a crescendo (abbreviated as <em>cresc.</em>) is a horizontal mark with an opening angle (like so: <). It can be followed by another dynamics command.
In order to answer the question 7, the piece is needed.