2. What kind of energy is present when the speed of moving particles increases in a
substance?
A. chemical
C. mechanical
B. electrical
D. thermal energy
3. A steam engine transforms
A heat energy into sound energy
B. electrical energy into sound energy
Cheat energy into mechanical energy
D. mechanical energy into heat energy
C. sound energy
4. Heated engine produces heat energy that turns into
cal energy
D. thermal energy​