Gravity and Inertia

Front

What is inertia?

Back

Inertia is the tendency of an object to remain at rest or in uniform motion in a straight line unless acted upon by an external force.

Front

What happens to planets if the sun's gravitational force disappears?

Back

The planets will fly away in straight lines.

Front

What keeps planets in orbit around the sun?

Back

Gravity is the force that keeps planets in orbit around the sun.

Front

How does distance affect gravitational pull?

Back

The gravitational pull decreases as the distance from the mass (like the sun) increases.

Front

What is gravity?

Back

Gravity is a force that attracts two bodies toward each other, such as the Earth and the Moon.

Front

What is the relationship between gravity and mass?

Back

The greater the mass of an object, the stronger its gravitational pull.

Front

What is the role of gravity in the solar system?

Back

Gravity keeps the planets in orbit around the sun and governs the motion of celestial bodies.

Front

What is the effect of inertia on a moving object?

Back

A moving object will continue to move in a straight line at constant speed unless acted upon by an external force.

Front

What is an example of inertia in everyday life?

Back

When a car suddenly stops, passengers lurch forward due to inertia.

Front

How does gravity affect falling objects?

Back

Gravity causes objects to accelerate towards the Earth when they are dropped.