Demonstrate energy transformations such as energy in a flashlight battery changes from chemical energy to electrical energy to light energy.
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Q 1/7
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The diagram below shows a hot air balloon rising. Propane gas tanks are seen at the bottom of the balloon. What energy transformations occur when propane gas is used to lift the balloon?
60
Thermal →chemical →light
Chemical→ thermal→mechanical
Mechanical→ light→ chemical
Chemical →mechanical →thermal
Q 2/7
Score 0
When a lion eats a zebra and then uses the energy from the zebra to run, the lion’s body converts —
60
electrical energy to chemical energy
chemical energy to light energy
chemical energy to mechanical energy
mechanical energy to chemical energy
7 questions
Q.
The diagram below shows a hot air balloon rising. Propane gas tanks are seen at the bottom of the balloon. What energy transformations occur when propane gas is used to lift the balloon?
1
60 sec
6.9c
Q.
When a lion eats a zebra and then uses the energy from the zebra to run, the lion’s body converts —
2
60 sec
6.9c
Q.
The main parts of a working clothes dryer are shown in the diagram. This appliance dries clothes primarily by converting —
3
60 sec
6.9c
Q.
A teacher rubbed a match against a piece of sandpaper. The match started to burn. Which statement best describes the energy changes that occurred?
4
60 sec
6.9c
Q.
A cook heats a meal in a microwave oven. What energy transformations occur between the microwave oven and the meal?
5
60 sec
6.9c
Q.
Which statement describes the energy changes that occur when water in a tea kettle is heated on a stove that uses natural gas?
6
60 sec
6.9c
Q.
The blades of a wind turbine are at rest until the movement of air causes the blades to spin.
Which energy transformation happens when the blades are spinning as shown?
