A constant external force of 3 N is exerted on a 2kg mass, while the mass is moving. The force is applied for 3 s, over which interval the displacement of the mass is 0.5 m.  What is the change in it’s momentum in SI units?

With a force F acting on a mass, acting over time interval t, and over a displacement magnitude d in the direction of the force, the change in an object’s kinetic energy is:

A toy roller coaster has mass 5 kg, and rolls along a toy coaster track with only gravity doing work.  It begins at the highest point from rest, then drops vertically 2 m to the lowest point Point B, and then ascends 1 m to Point C.  What is speed at Point C in m/s?

A green laser pulse is ignited from a the tip of a laser pointer.  The wavelength of the laser is 5.0 x 10^-7 m.  After 2 s, how far will the pulse have travelled, in m?

A block slides up a ramp, with gravity and sliding friction the only forces acting. Which is true is of the work done by friction?  

If the pressure of a gas increases at constant temperature, what happens to it’s volume?

Which best describes the magnetic field lines of a bar magnet?

A 10kg and a 5kg mass exert forces on one another, with no other forces acting. Which is true?

A bat strikes a ball initially headed in the positive direction.  The ball reverses direction after impact.  The initial speed of the ball is 4 m/s, it’s mass is 0.5 kg, and it’s diameter is 0.1 m.  What is the magnitude of the ball’s momentum before impact, in SI units?

A walnut drops from the branch of a very tall walnut tree.  The only force acting on it is gravity.  How far does it fall in 1s?