Outline

1
Outline

• Ch 2 - Motion in 1D
• Displacement, velocity, acceleration in 1D
• 1D motion w/ constant acceleration
• Freely falling objects
• Ch 3 - Vectors 2D Motion
• Vectors
• Displacement, velocity, acceleration in 2D
• Projectile Motion
• Ch 4 - The Laws of Motion
• Forces
• Newtons Laws

• Ch 5 - Energy
• Work
• Work-Energy Theorem
• Potential Energy
• Energy Conservation
• Power
• Ch 6 - Momentum
• Impulse
• Conservation of Momentum
• Collisions
• Ch 7 - Rotational Motion
• Rotational Kinematic Eqns
• Centripetal Acceleration
• Newtonian Gravitation

2
Outline

• Ch 8 - Rotational Dynamics
• Torque
• Mechanical Equilibrium
• Newtons 2nd Law (Rotational)
• Rotational K.E.
• Angular Momentum
• Ch 9 - Fluids
• Density pressure
• Variation of pressure w/ depth
• Pascals principle
• Archimedess principle
• Buoyant forces
• Equation of continuity
• Bernoullis equation

• Ch 10 - Thermal Physics
• 0th law of Thermodynamics
• Thermal expansion
• Ideal Gas Law
• Kinetic theory of gases
• Ch 11 - Energy in Thermal processes
• Heat Internal energy
• Specific heat
• Calorimetry
• Latent heat phase changes
• Energy transfer

3
Q1

• An object is thrown vertically into the air.
  Which of the following five graphs represents the
  velocity (v) of the object as a function of the
  time (t)
• I
• II
• III
• IV
• V

4
Q2

• Two bodies are falling with negligible air
  resistance, side by side, above a horizontal
  plane. If one of the bodies is given an
  additional horizontal acceleration during its
  descent, it
• strikes the plane at the same time as the other
  body
• has the vertical component of its velocity
  altered
• has the vertical component of its acceleration
  altered
• follows a hyperbolic path
• follows a straight line path along the resultant
  acceleration vector

5
Q3

• A heavy wooden block is dragged by a force F
  along a rough steel plate, as shown below for two
  possible situations. The magnitude of the
  applied force F is the same for both cases. The
  frictional force in (ii), as compared with the
  frictional force in (i) is
• the same
• greater
• less
• less for some angles of the incline and greater
  for others
• can be less or greater, depending on the
  magnitude of the applied force.

F
i
ii
F
6
Q4

• The weight of an object on the moon is one-sixth
  of its weight on the earth. The ratio of the
  kinetic energy of the body on the earth moving
  with speed v to that of the same body moving with
  speed v on the moon is
• 61
• 361
• 11
• 16
• 136

7
Q5

• The string in the figure is 50 cm long. When the
  ball is released from rest, it will swing along
  the arc shown. How fast, in m/s, will it be
  going at the lowest point in its swing?
• 2.0
• 2.2
• 3.1
• 4.4
• 6.0

50 cm
m
v
m
8
Q6

• The figure below shows 3 different possible axes
  of rotation for a solid cylinder. Which of the
  following statements is true?
• I1 gtI2 gtI3
• I3 gtI2 gtI1
• I2 gtI3 gtI1
• I1 I2 I3
• none of the above

1
2
3
9
Q7

• Automobile manufacturers design crumple zones in
  cars to reduce the force experienced during a
  collision. Crumple zones work by
• decreasing the change in momentum during the
  collision
• increasing the force exerted on the other car
  during the collision
• decreasing the duration of the collision
• decreasing the impulse during the collision
• none of these

10
Q8

• If a wheel turns with constant angular speed
  then
• Each point on its rim moves with constant
  velocity
• Each point on its rim moves with constant
  acceleration
• The wheel turns through equal angles in equal
  times
• The angle through which the wheel turns in each
  second increases as time goes on
• The angle through which the wheel turns in each
  second decreases as time goes on

11
Q9

• A 100 N force is applied to a wheel in four
  different ways as shown. Rank the resulting
  angular speed of the wheel after 10 seconds from
  least-to-greatest.
• A, B, C, D
• C and D tie, then A, B
• C and D tie, then B, A
• A, B, then C and D tie
• All are the same

12
Q10

• Mars has about 1/10 the mass of Earth, and 1/2
  the diameter. The acceleration of gravity near
  the surface of Mars is about
• 9.8 m/s2
• 2.0 m/s2
• 3.9 m/s2
• 4.9 m/s2
• None of these

13
Q11

• A steel ax and an aluminum piston have the same
  apparent weight in water. When they are weighed
  in air
• they weigh the same
• the ax is heavier
• the piston is heavier
• they both weigh less than they did in water
• the weight depends on their shapes