Work and Energy Scenarios Level 1 Part 1

According to the notes, what type of system is this equation designed to assess?

• an open system

• a closed system

• a thermodynamic system

According to the notes, what type of system is this equation designed to assess?

• an open system

• a closed system

• a thermodynamic system

If we are using this equation to frame our thinking, would we more than likely be assessing an energy conservation?

• no

• yes

• say what?

If we are using this equation to frame our thinking, would we more than likely be assessing an energy conservation?

• no

• yes

• say what?

What is the external work done on the defined system?

"A pendulum system of mass m with an initial velocity (v₀) of zero starts at position A and moves to position B. Friction is negligible"

• zero

• non-zero

• sub-zero

• negative and non-zero

What is the external work done on the defined system?

"A pendulum-Earth system of mass m with an initial velocity (v₀) of zero starts at position A and moves to position B. Friction is negligible"

• zero

• non-zero

• sub-zero

• negative and non-zero

What is the external work done on the defined system?

"A pendulum system of mass m with an initial velocity (v₀) of zero starts at position A and moves to position C. Friction is negligible"

• zero

• non-zero

• sub-zero

• negative and non-zero

What is the change in energy for the defined system?

"A pendulum-Earth system of mass m with an initial velocity (v₀) of zero starts at position A and moves to position C. Friction is negligible"

• zero

• non-zero

• sub-zero

• positive and non-zero

Which of the following equations could be applied given the mass m of the object and the change in height from position 1 to position 3 Δy to determine the change in gravitational potential energy of Earth-pendulum system?

• mgΔy

• 1/2 mv²

Which of the following equalities could be applied given the mass m of the object and the change in height from position 1 to position 3 Δy to determine the amount of kinetic energy for the Earth-pendulum system at position 3?

• 
•