A student thinks that energy could be transferred to a small iron block at rest on a smooth table in a number of different ways. He offers these suggestions. 1. Heat it. 2. Shine light onto it. 3. Pass a current through it. Which of these suggestions are correct?
- A1 and 2 only
- B1 and 3 only
- C2 and 3 only
- D1, 2 and 3