Free Printable NCUK IFY Physics

1.

$\epsilon$

a)

emf

b)

p.d.

c)

internal resistance

d)

lost volts

2.

$r$

a)

emf

b)

p.d.

c)

internal resistance

d)

lost volts

3.

$Ir$

a)

emf

b)

p.d.

c)

internal resistance

d)

lost volts

4.

Terminal voltage

a)

$\epsilon$

b)

$r$

c)

$Ir$

d)

$IR$

5.

potential difference

a)

Voltage dropped across a component

b)

Voltage provided by the power supply

6.

emf

a)

Voltage dropped across a component

b)

Voltage provided by the power supply

7.

Voltmeters

a)

are connected in parallel

b)

are connected in series

c)

have a large resistance

d)

have a small resistance

8.

emf

a)

$JC^{-1}$ removed from the circuit

b)

$VA^{-1}$ removed from the circuit

c)

$JC^{-1}$ added to the circuit

d)

$VA^{-1}$ added to the circuit

9.

p.d.

a)

$JC^{-1}$ removed from the circuit

b)

$VA^{-1}$ removed from the circuit

c)

$JC^{-1}$ added to the circuit

d)

$VA^{-1}$ added to the circuit

10.

True

a)

No sources of emf have internal resistance

b)

Some sources of emf have internal resistance

c)

Most sources of emf have internal resistance

d)

All sources of emf have internal resistance

11.

Correct

a)

$\epsilon=V+Ir$

b)

$\epsilon=I\left(R+r\right)$

c)

$\epsilon=V$

12.

Internal resistance can be measured directly

a)

True

b)

False

c)

Sometimes

13.

Internal resistance can be calculated from measurements

a)

True

b)

False

14.

$\Omega$

a)

$CJ^{-1}A^{-1}$

b)

$AC^{-1}J^{-1}$

c)

$JC^{-1}A^{-1}$

15.

The gradient on a $V-I$ graph

a)

$r$

b)

$-r$

c)

$\epsilon$

d)

$-\epsilon$

16.

The y-intercept on a $V-I$ graph

a)

$r$

b)

$-r$

c)

$\epsilon$

d)

$-\epsilon$

17.

rheostat

a)

resistor

b)

thermister

c)

variable capacitor

d)

variable resistor

18.

potentiometer

a)

resistor

b)

thermister

c)

variable capacitor

d)

variable resistor

NCUK IFY Physics - T) emf and p.d.

Total questions: 18

Worksheet time: 3mins

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