Gravitational Force

The video tutorial explores the concept of gravity through various activities. It begins with an introduction to gravitational force, followed by a jumping activity to understand why objects fall back to the ground. The next activity involves throwing a ball to observe its motion under gravity. The tutorial then guides students in constructing a water wheel to further illustrate gravity's effects. Finally, students observe the water wheel in action and are encouraged to design their own gravity-related activity.

Why do objects fall back to the ground after being thrown up?

• Because of air resistance

• Due to gravitational force

• Due to friction

• Because of magnetic force

What is required for planes and rockets to overcome gravity?

• Increased speed

• Lighter materials

• More fuel

• Greater lift force

As the ball is thrown upwards, what happens to its speed?

• It fluctuates

• It remains constant

• It increases

• It decreases

In which direction does the ball fall after reaching its peak height?

• In a circular path

• Upwards

• Sideways

• Downwards

What force causes the water wheel to move?

• Gravitational force

• Electrical force

• Wind force

• Magnetic force