Final Exam Review Physics 151

Front

A constant net torque is applied to an object. Which one of the following will not remain constant? Angular Velocity, Angular Acceleration, Center of Gravity, Moment of Inertia

Back

Angular Velocity

Front

On a warm summer day, in which direction would air flow if one were to open the window to their air-conditioned house?

Back

The air rushes inside

Front

During a head-on collision between a large truck and a car, the force on the car is...

Back

The same

Front

A poker is a stiff, nonflammable rod used to push burning logs around in a fireplace. For safety reasons, the poker should be made from a material with a...

Back

High Specific Heat

Front

When the buoyant force acting on an object is less than its weight it will...

Back

Sink

Front

An object moves in a circular path with a constant speed v. Which of the following is true? Both velocity and acceleration are changing, Its velocity is changing, but the acceleration is constant, Its velocity is constant, but acceleration is changing, Neither velocity nor acceleration is changing

Back

Both velocity and acceleration are changing

Front

A hoop and a disk with the same mass, radius, and angular speed are spinning. If the same braking torque is applied to each, which stops sooner?

Back

Disk

Front

How do the buoyant forces acting on lead and iron compare if they are the same size, when placed in water?

Back

The buoyant forces are equal.

Front

If an asteroid has a semimajor axis of 4AU, how long does it take to go around the Sun? (T^2 = r^3)

Back

8 years

Front

A pendulum bob is released from rest at some angle. How does the kinetic energy halfway down its swing compare to the kinetic energy at the bottom?

Back

The kinetic energy is greater at the bottom.