TRỌNG LƯỢNG VÀ LỰC HẤP DẪN

Multiple Choice

What is the symbol used to represent the force of gravity (trọng lực) in physics?

• G

• P

• F

• M

Open Ended

Why is the force of gravity important for life on Earth?

Multiple Choice

What is the main difference between mass and weight?

• Mass is the amount of matter in an object and does not change with location, while weight is the force of gravity on an object and depends on location.

• Mass is measured in Newtons, while weight is measured in kilograms.

• Mass depends on gravity, while weight does not.

• Mass and weight are always the same.

Fill in the Blank

The formula to calculate weight is P = m × ___.

Multiple Select

Which of the following statements about gravitational force are correct?

• Gravitational force exists between all objects with mass.

• The greater the mass of the objects, the stronger the gravitational force between them.

• Gravitational force only exists on Earth.

• The closer two objects are, the stronger the gravitational force between them.

Open Ended

Explain how the weight of an object changes when it is moved from Earth to the Moon, using the concepts of gravitational force and mass.

Multiple Choice

Which of the following is an example of gravitational force in everyday life?

• An apple falling from a tree to the ground.

• A car starting its engine.

• A person turning on a light bulb.

• A book being written.

Open Ended

Describe two different tools used to measure mass and weight, and explain how each tool works.

Open Ended

After learning about gravitational force and weight, what is one question you still have or something you would like to know more about?

Multiple Choice

What is the force that causes objects to fall towards the Earth called?

• Gravitational force

• Magnetic force

• Frictional force

• Electrostatic force

Open Ended

Explain how gravity influences both the movement of celestial bodies and the weight of objects on Earth.

Multiple Choice

Which of the following statements best summarizes the key points about gravity and mass discussed in the lesson?

• Gravity is the force that keeps us on Earth, moves celestial bodies, and changes weight.

• Gravity only affects objects on Earth and does not influence celestial bodies.

• Mass changes depending on location, while weight remains constant.

• Gravity is unrelated to the movement of celestial bodies.