1.1 Energy changes in a system, and the ways energy is stored before and after such changes

Question 12

An autonomous deep-sea submersible is being prepared for a research mission.

State the equation that links energy transferred ( $E$ ), power ( $P$ ), and time ( $t$ ).

[1]

The submersible has an emergency auxiliary battery that stores $5.76 \times 10^6\text{ J}$ of energy. During a backup procedure, the vehicle's telemetry system operates at a power level of $W240\text{ W}$ . Calculate the maximum operating time, in seconds, of the telemetry system when powered solely by a fully charged auxiliary battery.

[2]

State the equation that links current ( $I$ ), potential difference ( $V$ ), and resistance ( $R$ ).

[1]

The submersible's main hydraulic pump motor operates at a potential difference of $V48\text{ V}$ . When active, it draws a current of $A15.0\text{ A}$ . Calculate the electrical resistance of this pump motor.

[2]

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An autonomous deep-sea submersible is being prepared for a research mission.

State the equation that links energy transferred ( $E$ ), power ( $P$ ), and time ( $t$ ).

[1]

State the equation that links current ( $I$ ), potential difference ( $V$ ), and resistance ( $R$ ).

[1]

[2]

1.1 Energy changes in a system, and the ways energy is stored before and after such changes

Question 12

Markscheme

1.1 Energy changes in a system, and the ways energy is stored before and after such changes

Question 12

Markscheme

1.1 Energy changes in a system, and the ways energy is stored before and after such changes

Question 12

1.1 Energy changes in a system, and the ways energy is stored before and after such changes Questions

1.1 Energy changes in a system, and the ways energy is stored before and after such changes

Question 12

1.1 Energy changes in a system, and the ways energy is stored before and after such changes Questions