Question

actice 5
ch each type of
y transformation
the step in
e machine.
chemical to
mechanical
chemical to
thermal
lechanical to
electrical
lechanical to
mechanical
mechanical
to chemical
thermal to
mechanical

1. light the match to start the candle.
2. the candle burns the string into two pieces, releasing the ball that

was being held in place.

1. the ball rolls down the ramp and hits the electrical switch, turning

on the fan.

1. the fan blows air, pushing the books over like dominoes.
2. the books knock a container that spills vinegar into a beaker of baking

soda, which creates a chemical reaction bubbling out of the container.

1. the reaction moves a ruler holding a marble, causing the marble to

fall off the ruler and hit the power button a tv remote control.

1. the remote turns on the tv.

Explanation:

Step1: Analyze each step

• Step 1: Lighting a match involves a chemical reaction (burning of match head chemicals) which produces heat (thermal energy). So, it is chemical to thermal.
• Step 2: The candle burning (chemical reaction) releases a ball (mechanical movement). So, it is chemical to mechanical.
• Step 3: The ball rolling (mechanical) hits a switch (which is part of an electrical circuit activation). So, it is mechanical to electrical.
• Step 4: The fan blowing (mechanical - movement of air) pushing books (mechanical - movement of books). So, it is mechanical to mechanical.
• Step 5: Vinegar (chemical) and baking soda (chemical) reaction (chemical) with no direct mechanical movement in the sense of the main energy transformation here (the bubbling is a chemical reaction outcome). But if we consider the spill (mechanical - container being knocked) leading to chemical reaction. But the main transformation is chemical (vinegar and baking soda reaction). However, if we follow the left - hand side categories, the closest is chemical to chemical (but since it's not in the list, re - evaluating. The knocking is mechanical (books knocking container) and then chemical (reaction). But the left - hand side has “Chemical to chemical” not listed. Re - looking at the left - hand side categories: the container spill (mechanical - movement of container) leading to chemical reaction. But the left - hand side has “Mechanical to chemical” as an option.
• Step 6: The reaction (chemical) moves a ruler (mechanical). So, it is chemical to mechanical. But if we consider the marble falling (mechanical) hitting the button (mechanical - movement to activate electrical in the remote, but the left - hand side has “Mechanical to mechanical” as an option (the marble's fall and hit are mechanical movements).
• Step 7: The remote (electrical - it uses battery/electrical signal) turns on the TV (electrical). But if we consider the button press (mechanical) activating the remote (electrical). But the left - hand side has “Mechanical to electrical” (button press is mechanical, remote activation is electrical).

Step2: Match with categories

1. Chemical to thermal
2. Chemical to mechanical
3. Mechanical to electrical
4. Mechanical to mechanical
5. Mechanical to chemical
6. Mechanical to mechanical
7. Mechanical to electrical

Answer:

1. Chemical to thermal
2. Chemical to mechanical
3. Mechanical to electrical
4. Mechanical to mechanical
5. Mechanical to chemical
6. Mechanical to mechanical
7. Mechanical to electrical