force

What is the definition of static equilibrium?

• A. An object at rest with no net force or net torque acting on it

• B. An object in motion with a constant velocity

• D. An object experiencing frictional force

• C. An object accelerating due to an external force

Which of the following is a common misconception related to the concept of force?

• D. Force acts in the opposite direction of motion

• C. Force is always equal to weight

• B. Force can only cause motion in one direction

• A. Force always requires physical contact

What is the cause of tides in the ocean?

• B. Earth's rotation speed

• A. Gravitational forces exerted by the moon and sun

• D. Magnetic fields

• C. Underwater earthquakes

Which statement is true according to Kepler's laws of planetary motion?

• C. The square of a planet's orbital period is proportional to the cube of its average distance from the Sun

• A. The orbits of planets around the Sun are perfect circles

• B. The speed of a planet in its orbit around the Sun is constant

• D. A line drawn from the Sun to a planet sweeps out equal areas in equal times

What is the mechanism through which energy is transferred from one system to another?

• A. Work

• C. Motion

• D. Friction

• B. Force

Which of the following is a key idea related to the law of universal gravitation?

• C. Gravity requires physical contact between objects

• B. Weight depends on the strength of gravity

• D. Gravity is a universal force that attracts all objects with mass

• A. Gravity only pulls objects downward

What is the first condition of equilibrium?

• C. The object must be at rest

• B. The net external torque must be zero

• D. The object must be accelerating

• A. The sum of forces must add up to zero

What is the concept of force?

• D. Friction between surfaces

• C. Energy transferred between systems

• B. Acceleration of an object

• A. Push or pull that one object exerts on another

What is the role of simple machines like levers and pulleys?

• D. To eliminate friction

• C. To amplify force and alter direction

• A. To increase weight

• B. To decrease force

What is the implication of linking concepts to real-life scenarios in teaching?

• D. Is not effective

• C. Enhances attractiveness and understanding of the topic

• B. Makes learning less understandable

• A. Makes teaching boring