Physics Calculations

Calculate the change in kinetic energy when a 2 kg object's speed increases from 3 m/s to 7 m/s.

• 40J

• 32J

• 28J

• 44J

A 1.5 kg object falls from 8 meters. Calculate its potential energy at the start (g = 9.8 m/s²).

• 117.6J

• 98J

• 147J

• 88.2J

An object moves 300 meters east in 25 seconds. Calculate its velocity.

• 10m/s east

• 12m/s east

• 15m/s east

• 8m/s east

Calculate the kinetic energy of a 1.8 kg object moving at 4 m/s.

• 14.4J

• 28.8J

• 7.2J

• 21.6J

A 0.5 kg mass is raised to 4 meters. Calculate its potential energy (g = 9.8 m/s²).

• 19.6J

• 39.2J

• 29.4J

• 49J

Calculate the speed of a cyclist who travels 2.4 km in 8 minutes.

• 5m/s

• 6m/s

• 4m/s

• 3m/s

A 1.5 kg object's kinetic energy increases by 90 J. Calculate the change in speed if its initial velocity was 4 m/s.

• 6m/s

• 8m/s

Calculate the potential energy of a 3.2 kg object at 2.5 meters height (g = 9.8 m/s²).

• 78.4J

• 58.8J

• 98J

• 117.6J

An object travels 150 meters west in 12.5 seconds. Calculate its velocity.

• 12m/s west

• 15m/s west

• 10m/s west

• 8m/s west

Calculate the kinetic energy of a 600 g object moving at 10 m/s.

• 60J

• 30J

• 45J

• 15J