Practical Physics Exam (G12)

What does figure (1) represent ?

• moving a spring from its equilibrium position with elastic potential energy

• Moving a ball between two positions

• Moving a simple pendulum from its equilibrium position with gravitational potential energy

• No correct answer

At which point is a pictured pendulum has a maximum kinetic energy _______

• a

• b

• c

• No correct answer

At which point is a pictured pendulum has a Minimum kinetic energy _______

• a

• b

• c

• both (a) and (b)

At which point is a pictured pendulum has a maximum potential energy _______

• a

• b

• c

• both (a) and (c)

At which point is a pictured pendulum has a minimum potential energy _______

• a

• b

• c

• No correct answer

What does figure (2) represent ?

• moving a spring from its equilibrium position with elastic potential energy

• Moving a ball between two positions

• Moving a simple pendulum from its equilibrium position with gravitational potential energy

• No correct answer

In which direction is the pictured spring's acting force (Applied Force) ?

• To the right

• To the left

• There's no acting force

• Both left and right

In which direction is the pictured spring's restoring force (reaction force) ?

• To the right

• To the left

• There's no restoring force

• Both left and right

A force of 200 N causes displacement with a magnitude of 0.5 m . what's the constant of the spring ?

• 100 N/m

• 200 N/m

• 400 N/m

• 800 N/m

The spring shown in the figure has a constant of 80 N/m . What is the magnitude of the force being applied ? the dotted green line represents the spring's equilibrium position and the green vector is the displacement which is 0.250 m

• 20 N

• 80 N

• 160 N

• 320 N