You can test this out using a lamp in the laboratory The solar cell collects the Sun’s energy. The area of the solar cell matters So how can we investigate only part of the cell area without damaging it? You can test this out using a lamp in the laboratory Let’s use a mask to cover some of the solar cell area

The Sun is so far away that the angle doesn’t matter The Sun shines down at an angle, does this affect the energy the solar buggy can store? The Sun is so far away that the angle doesn’t matter You can test this out using a lamp in the laboratory OK, but we need to think about how to measure angles

We can’t make clouds in our school lab Clouds block out light from the Sun. Will the buggy work on cloudy days? We can’t make clouds in our school lab You can test this out using a lamp in the laboratory OK, but we need to think about how to simulate clouds between our lamp and solar cell

We don’t have lamps of different colours in our lab Does the energy the buggy stores depend on the colour of the light? OK, but we need to think about how to change the colour of the light striking the solar cell You can test this out using a lamp in the laboratory

Does the type of lamp used to light the buggy affect how it works? Old style light bulbs get a lot hotter than energy saving ones You can test this out using different lamps in the laboratory Maybe not all of the energy from the bulb is visible light

You can test this out using a lamp in the laboratory The solar cell collects the Sun’s energy. The brightness of the Sun matters So how can we investigate how the brightness of light affects the solar cell? You can test this out using a lamp in the laboratory The light gets dimmer as you move away from a lamp

You can test this out using a lamp in the laboratory The solar cell collects the Sun’s energy. How long it is in light matters So how can we investigate how the time the buggy is in light affects the solar buggy? You can test this out using a lamp in the laboratory We will have to make sure the investigation is fair