Q.1
A force acting on an object can do what to it?
  • Change its shape
  • Make it breakfast
  • Have no effect on it
  • Not allow the object to get married
Q.2
If a force acts on an elastic object stretching the object, what kind of energy is stored within the object?
  • Gravitational potential energy
  • Tidal energy
  • Chemical energy
  • Elastic potential energy
Q.3
Which of the following items can store elastic potential energy?
  • A paper clip
  • A pencil
  • A rubber band
  • A USB pen drive
Q.4
How is the extension of an elastic object related to the force applied?
  • Inversely proportional
  • Directly proportional
  • Dependent upon the material being extended
  • None of the above
Q.5
Which formula correctly states the relationship between force and extension?
  • F = e
  • F= 2k x e
  • F = k x 2e
  • F = k x e
Q.6
What does k represent in the formula in question 5?
  • The force on the object
  • The extension of the object
  • The spring constant
  • The constant of extension
Q.7
If a material has a spring constant of 10 N/m and is extended by 1 m, what force must have been applied to the object?
  • 5 N
  • 10 N
  • 20 N
  • 50 N
Q.8
What is the size of the extension of an object which has a spring constant of 30 N/m when a force of 15 N is applied?
  • 0.5m
  • 1m
  • 2m
  • 10m
Q.9
A slinky is stretched from being a length of 15 cm to a length of 2 m. One end of the slinky is affixed to a point whilst a child pulls on the other end with a force of 10 N. What is the spring constant of the slinky?
  • 5.3 N/m
  • 5.4 N/m
  • 18.5 N/m
  • 20 N/m
Q.10
A spring is stretched to a point where, when released it does not return to its original length. What is this point called?
  • Fracture limit
  • Limit of proportionality
  • Torsion limit
  • Bohr's limit
0 h : 0 m : 1 s