30 Questions
| Attempts: 61

Questions and Answers

- 1.A derived unit is a unit derived from the combination of [...] units
- 2.An accurate experiment is one that has a small [...] error
- A.
Percentage

- B.
Systematic

- C.
Random

- 3.A graph is extended in order for an intercept to be found. This process is known as ...
- A.
Integration

- B.
Interpolation

- C.
Extrapolation

- 4.The process of assuming that the trend line applies between two points is known as [...]
- 5.Displacement (as a kinematic concept) can be defined as "the distance moved in a particular direction"
- A.
True

- B.
False

- 6.Velocity is the rate of change of [...]
- 7.Speed is the rate of change of [...]
- 8.Acceleration is the rate of change of [...]
- 9.Out of the concepts just defined (displacement, velocity, speed, and acceleration), two are scalars and two are vectors.
- A.
True

- B.
False

- 10.The [...] velocity of an object is its velocity at a specific instant of time
- A.
Average

- B.
Constant

- C.
Terminal

- D.
Instantaneous

- 11.An object is in a uniform gravitational field, accelerating vertically. Air resistance may be neglected. The object is thus in [...]
- 12.A free-falling object has a net force on it that is equal to zero. The downward force of gravity has come to equal the upward force of drag. What has the object achieved?
- A.
Constant acceleration

- B.
Terminal velocity

- C.
Strobe photography

- 13.The origin of all everyday forces is either gravitational or [...]
- 14.Up to an elastic limit, the extension, x, of a spring is proportional to the tension force, F. Who's the guy behind this law?
- A.
Newton

- B.
Rutherford

- C.
Peter StrĂ¥e

- D.
Hooke

- 15.If the resultant force on an object is zero, then it is said to be in [...]
- 16.Correct statement of Newton's second law: The resultant force is proportional to the rate of change of [...]
- 17."The force that opposes the relative motion of two surfaces and acts along the surfaces" Which force is being defined?
- A.
Tension

- B.
Friction

- C.
Compression

- D.
Lift

- 18.Air resistance and drag are frictional forces
- A.
True

- B.
False

- 19.The opposite of the tension force is the [...] force.
- 20.Graviational force is the force between objects as a result of their ...
- A.
Inertia

- B.
Momentum

- C.
Weights

- D.
Masses

- 21.The amount of matter contained in an object is the object's [...]
- 22.The impulse can be defined as ...
- A.
The change in kinetic energy

- B.
The result of an inelastic collision

- C.
The change of momentum

- D.
The change of weight

- 23.A collision in which no mechanical energy is lost is known as [...]
- 24.Momentum is conserved in a totally inelastic collision
- A.
True

- B.
False

- 25.Kinetic energy is conserved in an inelastic collision
- A.
True

- B.
False

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