📚 مادة الاختبار: Science — Primary 4
تدريب عام: Unit 3 : Concept 3.3 Renewable Energy Resources (Science) - Primary 4
سؤال من
السؤال 1
What is a primary goal when utilizing renewable energy resources?
السؤال 2
In a hydroelectric system, how is gravitational potential energy primarily built up?
السؤال 3
What is the term for energy received from the sun?
السؤال 4
Using solar and wind power for electricity generation contributes to clean energy goals.
السؤال 5
What energy transformation occurs as water flows downhill in a river?
السؤال 6
Solar panels can only be used to generate electricity for very small devices, not for entire buildings.
السؤال 7
How can houses be designed to use solar energy for warming?
السؤال 8
Before the widespread use of electricity, how did windmills primarily assist people?
السؤال 9
What energy transformation takes place when a wind turbine operates?
السؤال 10
What is a common application of solar panels installed on top of buildings?
السؤال 11
The water cycle helps ensure that water used for hydroelectricity is a renewable resource.
السؤال 12
What is a primary characteristic of sustainable energy sources like solar and wind?
السؤال 13
How do watermills primarily contribute to harnessing water energy?
السؤال 14
How might large sets of solar panels benefit a community?
السؤال 15