Figure 4 shows a truck lifting a box - Edexcel - GCSE Physics Combined Science - Question 3 - 2022 - Paper 1

To calculate the change in gravitational potential energy (GPE), we use the formula:

$\Delta GPE = m \times g \times h$

Where:

• $m$ is the mass of the box (57 kg)
• $g$ is the gravitational field strength (10 N/kg)
• $h$ is the height the box is lifted (2.1 m)

Now, substituting the values into the formula:

$\Delta GPE = 57 \times 10 \times 2.1$

Calculating this: $\Delta GPE = 57 \times 10 = 570$

And then: $570 \times 2.1 = 1197$

Rounding to the nearest hundred, the change in gravitational potential energy is approximately 1200 Joules.