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drill

Primary Information
Secondary Information

Definition

A drill is a tool that is used to make holes in materials. Drills work by rotating a sharp bit at high speed. The bit cuts through the material, making a hole.

There are many different types of drills, including hand drills, power drills, and rotary hammers. Hand drills are powered by the user's hands, while power drills are powered by electricity or batteries. Rotary hammers are used to make large holes in hard materials.

Drills are an important tool in many different fields, including construction, carpentry, and mechanics. They are used to make holes for screws, nails, and other fasteners. They are also used to make holes for pipes, wires, and other utilities.

How can the word be used?

The dentist drilled a hole in my tooth.

drill

Different forms of the word

Noun: drill.

Verb: drill.

Adjective: drillable.

Synonym: exercise, practice.

Antonym: skip, neglect.

Etymology

The word "drill" comes from the Old English word drīelian, which means "to pierce or bore through". It is made up of the two Old English words drīw (to pierce) and -el (agentive suffix).

Question

When might you drill into something?

AQA Science Exam Question and Answer

Question:

Explain the scientific principles behind the functioning of a drill and the process of drilling. Describe how a drill converts energy and the different forces involved in drilling through various materials. Provide real-world examples of drilling applications and the importance of understanding the scientific principles for efficient drilling.

Answer:

  • A drill is a tool used to create holes in various materials. Its functioning is based on converting mechanical energy into rotational motion. When the drill is powered on, an electric motor or other power source generates mechanical energy, which drives a rotating shaft. The rotational motion is then transmitted to a drill bit, causing it to spin rapidly and cut through the material.
  • During drilling, different forces come into play. The cutting edges of the drill bit exert a downward force on the material, while the material itself exerts an equal and opposite force on the drill bit, known as reaction force. The success of drilling through a material depends on the combination of rotational speed, applied force, and the hardness and properties of the material.
  • Real-world examples of drilling applications include construction, woodworking, metalworking, and dentistry. Understanding the scientific principles of drilling is crucial for selecting appropriate drill bits, controlling drilling depth, and optimising drilling efficiency while minimizing material damage. Efficient drilling techniques are essential for various industries, ensuring accurate and precise hole creation for functional and aesthetic purposes.