A town receives electricity from a wind farm and a gas power station. The town's demand for electricity changes during the day.
Which statement about meeting changes in electricity demand is correct?
The gas power station cannot respond to demand because gas reserves are finite.
The wind farm is the more reliable source because wind is a renewable resource.
The wind farm can raise its output because moving air turns its generators directly.
The gas power station can raise its output because stored gas can be burned when demand rises.
86 exam-style questions on AQA GCSE Physics 1.3 National and global energy resources, covering 1.3 National and global energy resources. Each one has a worked solution and a mark scheme showing where the marks go.