5th g week DEC. 9 -Gravity

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other. It is what keeps us on the ground and causes objects to fall.

Front

Who is known for the law of universal gravitation?

Back

Isaac Newton is known for the law of universal gravitation, which states that every mass attracts every other mass.

Front

What causes the ocean tides on Earth?

Back

The ocean tides are caused by the gravitational pull of the Moon and the Sun on Earth's oceans.

Front

True or False: Gravity is stronger on the Moon than on Earth.

Back

False. Gravity is weaker on the Moon than on Earth.

Front

What is the relationship between gravity and weight?

Back

Weight is the measure of the force of gravity acting on an object. It depends on the mass of the object and the strength of the gravitational pull.

Front

What happens to objects in free fall?

Back

Objects in free fall experience only the force of gravity and accelerate downward at 9.8 m/s² on Earth.

Front

True or False: Gravity helps keep the planets in orbit around the Sun.

Back

True. Gravity is the force that keeps the planets in orbit around the Sun.

Front

What is the effect of gravity on a dropped ball?

Back

When a ball is dropped, gravity pulls it downward, causing it to accelerate towards the ground.

Front

What did Galileo Galilei contribute to the study of gravity?

Back

Galileo Galilei conducted experiments that showed that objects fall at the same rate regardless of their mass.

Front

What is the formula for calculating weight?

Back

Weight (W) = mass (m) × gravitational acceleration (g). On Earth, g is approximately 9.8 m/s².