Exit Ticket: Energy in Robotics

Energy Exit Ticket

Adult Education Robotics Energy Exit Ticket Challenging 15 Questions 14 Views

Classroom Worksheet

Exit Ticket: Energy in Robotics

Energy Exit Ticket

Name____________________________

Date________________

Score______ / 15

Grade: Adult Education

Subject: Robotics

Topic: Energy

Time: 20 Minutes

Difficulty: Challenging

Questions: 15

Instructions:
Answer each question clearly and concisely. Show your thinking when needed. Use correct robotics and energy vocabulary. Questions increase in difficulty from basic recall to problem-solving and application.

Skills Practiced:

Energy
Robotics
Critical Thinking
Problem Solving

1Question

What is energy in a robot system?

2Question

Name two common energy sources used in robots.

3Question

What component usually stores electrical energy in a mobile robot?

4Question

What is the main job of a motor in a robot?

5Question

Why do sensors and controllers also need energy, not just motors?

6Question

Define energy efficiency in robotics.

7Question

Give one example of energy loss in a robot and explain where it goes.

8Question

A robot slows down as its battery drains. What is the most likely reason?

9Question

Why can a heavy robot usually use more energy than a lighter robot doing the same task?

10Question

What is one advantage of using rechargeable batteries in robots?

11Question

A robot vacuum uses a lot of energy when climbing a carpeted ramp. Why does this happen?

12Question

A robot must operate for 4 hours. Its battery provides 12 volts and 5 amp-hours. What is the battery’s energy capacity in watt-hours?

13Question

A robot uses 30 watts while moving. How long can it run on a 60 watt-hour battery if the power draw stays constant?

14Question

Name two design choices that can reduce a robot’s energy use without changing its main task.

15Question

A field robot must travel long distances and use cameras, sensors, and a wireless radio. What is the best strategy to extend its operating time, and why?

Answer Key

#	Answer
1	Energy is the ability to do work or cause motion, sensing, and computing in a robot.
2	Examples include batteries and wall power/AC adapters. Solar power is another possible source.
3	A battery usually stores electrical energy in a mobile robot.
4	A motor converts electrical energy into mechanical motion.
5	Sensors and controllers need energy to detect information, process data, and make decisions.
6	Energy efficiency is how well a robot uses energy to get useful work done with minimal waste.
7	A common example is heat loss in motors or electronics; some electrical energy is converted into heat instead of motion.
8	The battery voltage is dropping, so the motors and electronics receive less usable power.
9	A heavier robot often needs more force to move, so its motors must work harder and consume more energy.
10	Rechargeable batteries can be reused many times, lowering cost and reducing waste.
11	The ramp and carpet increase resistance and required force, so the motors draw more current and use more energy.
12	Energy capacity = volts × amp-hours = 12 × 5 = 60 watt-hours.
13	Time = energy ÷ power = 60 Wh ÷ 30 W = 2 hours.
14	Possible answers include reducing weight, using efficient motors, improving wheel traction, lowering friction, optimizing code, or putting the robot into sleep mode when idle.
15	The best strategy is to combine a larger or more efficient power system with energy-saving design choices such as efficient motors, low-power electronics, duty cycling sensors, and software that reduces unnecessary processing. This extends operating time because it lowers total energy demand while increasing available energy.