M2.2 Rotational Movement

What happens if no force is applied to a satellite in space?

• It will stop moving.

• It will move in a straight line.

• It will move in a circular path.

• It will move in a zigzag path.

What causes the constant acceleration in uniform circular motion?

• Change in mass

• Change in speed

• Change in direction

• Change in temperature

What is the term for the force that causes acceleration towards the center of rotation in uniform circular motion?

• Gravitational Force

• Centripetal Force

• Frictional Force

• Magnetic Force

In uniform circular motion, what remains constant?

• Velocity

• Speed

• Direction

• Acceleration

What is the direction of acceleration in circular motion?

• a) Same as the force

• b) Opposite to the force

• c) Perpendicular to the force

• d) Random direction

What must a hammer thrower do to keep the hammer accelerating towards the center of rotation?

• Apply a force away from the center of rotation.

• Apply a force towards the center of rotation.

• Stop applying any force.

• Apply a force upwards.

What happens to the velocity of an object in uniform circular motion?

• It changes both magnitude and direction.

• It changes direction but not magnitude.

• It remains constant.

• It changes magnitude but not direction.

What happens to the hammer when the centripetal force is removed?

• a) It moves in a straight line.

• b) It moves in a circle.

• c) It stops moving.

• d) It moves in a zigzag pattern.

What is constantly changing in an object undergoing uniform circular motion?

• Mass

• Speed

• Velocity

• Temperature

What is the role of gravitational force in a satellite's orbit?

• It pushes the satellite away from Earth.

• It pulls the satellite towards Earth.

• It keeps the satellite in a straight path.

• It stops the satellite from moving.