Câu Hỏi Trắc Nghiệm - Cơ Năng

What is a thing that can do work called?

• Kinetic energy

• Potential energy

• Mechanical energy

• Thermal energy

Mechanical energy of an object is equal to:

• The sum of kinetic and potential energy of the object

• The difference between kinetic and potential energy of the object

• Kinetic energy minus potential energy

• The sum of mass and weight

Kinetic energy of an object depends on:

• Mass and height of the object

• Mass and velocity of the object

• Weight and height of the object

• Mass and volume of the object

When does an object have gravitational potential energy?

• When the object is on the ground

• When the object has mass

• When the object is in motion

• When the object is at a height above the ground

What type of mechanical energy does a rolling ball have?

• Potential energy

• Kinetic energy

• Mechanical energy caused by potential energy

• Thermal energy

When an object falls freely, which quantity remains constant?

• Potential energy

• Kinetic energy

• Mechanical energy

• Velocity

A compressed spring has:

• Kinetic energy

• Elastic potential energy

• Gravitational potential energy

• Thermal energy

A compressed spring has:

• Kinetic energy

• Elastic potential energy

• Gravitational potential energy

• Thermal energy

The mechanical energy of an object is __________ of the object when the object has the ability to __________.

Mechanical energy is divided into two main forms: __________ and __________.