MOCK PRE-UPS 2 SP015 2023/2024

A worker at a construction site is lifting a brick with constant speed.

What is the total work done on the brick?

• The total work done on the brick is maximum

• The total work done on the brick is constant

• The total done on the brick is zero

• The total work done on the brick is uniform

"Energy can neither be created or destroyed but can be converted from one form to another. The total energy in an isolated system is constant."

This statement is refer to the ____________.

• Principle of momentum.

• Principle of conservation of energy.

• Principle of conservation of angular momentum.

• Principle of superposition.

"A box is being lifted from point A to a maximum height at point C with initial velocity."

This statement is refer to _________.

• kinetic energy converted to gravitational potential energy.

• kinetic energy converted to elastic potential energy.

• gravitational potential energy converted to kinetic energy.

• elastic potential energy converted to gravitational potential energy.

Which is NOT a formula for power?

Work done is zero when ______

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• 
• 
• 

An object moving with constant speed in a circular path has acceleration because ________.

• its direction is always changing.

• its direction is constant.

• its direction is zero.

• its direction is increase.

The acceleration of a body in circular motion is always ________.

• to the left of the circle.

• towards to the center of circle.

• out of the circle.

• downward of the circle.

The example of centripetal force are ___________.

• the Earth's gravitational force on the satellite.

• as a car makes a turn.

• an object tied to a string swings to make a circle.

• a worker is pushing a wheelbarrow along a path.

Which one is NOT the conditions for static equilibrium of rigid body?

________ is defined as resistance of changes from rest or rotation motion.

• Torque

• Moment of inertia

• Angular momentum

• Rotational motion