Revision 2 SJ10

What is a robot?

• A machine that does tasks with the help of a person

• A computer program that runs on a computer.

• A machine that does tasks without the help of a person

Answer explanation

A robot is defined as a machine that can perform tasks autonomously, without human intervention. This distinguishes it from machines that require human assistance, making the correct choice "A machine that does tasks without the help of a person."

There are three types of robots such as humanoid robots, non-humanoid robots and _________________.

• robot vacuum cleaner

• computer program

• robot arms

• hardware

Answer explanation

The correct answer is 'robot arms' as it fits the category of robots alongside humanoid and non-humanoid types. Robot arms are specialized robotic systems used in various applications, distinguishing them from other options like vacuum cleaners or software.

What is an arm robot?

• Has a hand to grip things with and joints that bend and twist.

• The robots take part in competitions where they carry out day-to-day tasks just like humans would.

• A device that does not have to look like a human.

Answer explanation

An arm robot is characterized by having a hand for gripping and joints that allow bending and twisting, making the first choice the correct definition.

Which of the following is not an advantage of a robot?

• Perform tasks faster than humans

• Do anything which we need to be precise & accurate

• Cost a lot of money in maintenance & repair

• Can move without any human interference

Answer explanation

The correct choice is 'Cost a lot of money in maintenance & repair' because this is a disadvantage, while the other options highlight advantages of robots, such as speed, precision, and autonomy.

What is a repetitive task?

• Making microprocessors involves a lot of detailed and accurate work

• Jobs where an action needs to be done in the same way many times

• Robots are used in places where it is dangerous for humans to work

Answer explanation

A repetitive task refers to jobs where an action needs to be done in the same way many times, emphasizing consistency and routine in the work process.

Give one difference between how robots and humans do jobs?

• Robots do not work faster than a human

• Robot get bored or tired

• Robots are more accurate than a human

Answer explanation

Robots are designed for precision and consistency, making them more accurate than humans in tasks that require exact measurements or repetitive actions. Unlike humans, they do not experience fatigue or distraction.

What makes a robot work?​

• mechanical parts, controller, and actuators

• sensors, controller, and actuators

• sensors, batteries, and actuators

Answer explanation

A robot operates using sensors to gather information, a controller to process that information, and actuators to perform actions. This combination allows it to interact with its environment effectively.

A robot does not have eyes and ears like humans. It uses components called ___________.

• controller

• actuators

• sensors

• batteries

Answer explanation

A robot uses sensors to perceive its environment, similar to how humans use eyes and ears. Sensors detect changes in the surroundings, allowing the robot to gather information and respond accordingly.

What is the function of proximity sensors?

• Tell a robot how close an object is

• Let a robot know that it is touching something

• Tell a robot it has collided with something

Answer explanation

Proximity sensors measure the distance to nearby objects, allowing a robot to determine how close it is to them. This is essential for navigation and obstacle avoidance, making 'Tell a robot how close an object is' the correct choice.

What is the function of pressure sensors?

• Tell a robot how close an object is

• Let a robot know that it is touching something

• Tell a robot it has collided with something

Answer explanation

Pressure sensors detect force applied to them, allowing a robot to know when it is in contact with an object. This is crucial for tasks requiring precise manipulation, making 'Let a robot know that it is touching something' the correct choice.