# Physics equations/19-Electric Potential and Electric Field/Q:KE&PE/More practice

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## B

1 How fast is a 2212 eV electron moving?

 a) 8.3 x 106 m/s. b) 1.2 x 107 m/s. c) 1.9 x 107 m/s. d) 2.8 x 107 m/s. e) 4.2 x 107 m/s.

2 A proton is accelerated (at rest) from a plate held at 552.1 volts to a plate at zero volts. What is the final speed?

 a) 3.3 x 105 m/s. b) 4.9 x 105 m/s. c) 7.3 x 105 m/s. d) 1.1 x 106 m/s. e) 1.6 x 106 m/s.

3 What voltage is required accelerate an electron at rest to a speed of 9.7 x 104 m/s?

 a) 1.8 x 10-2 volts b) 2.7 x 10-2 volts c) 4 x 10-2 volts d) 6 x 10-2 volts e) 9 x 10-2 volts

4 What voltage is required to stop a proton moving at a speed of 3 x 104 m/s?

 a) 1.4 x 100 volts b) 2.1 x 100 volts c) 3.1 x 100 volts d) 4.7 x 100 volts e) 7 x 100 volts

## C

1 How fast is a 2928 eV electron moving?

 a) 6.3 x 106 m/s. b) 9.5 x 106 m/s. c) 1.4 x 107 m/s. d) 2.1 x 107 m/s. e) 3.2 x 107 m/s.

2 A proton is accelerated (at rest) from a plate held at 333.6 volts to a plate at zero volts. What is the final speed?

 a) 1.1 x 105 m/s. b) 1.7 x 105 m/s. c) 2.5 x 105 m/s. d) 3.8 x 105 m/s. e) 5.7 x 105 m/s.

3 What voltage is required accelerate an electron at rest to a speed of 1.7 x 105 m/s?

 a) 1.6 x 10-2 volts b) 2.4 x 10-2 volts c) 3.7 x 10-2 volts d) 5.5 x 10-2 volts e) 8.2 x 10-2 volts

4 What voltage is required to stop a proton moving at a speed of 8.1 x 106 m/s?

 a) 2.3 x 105 volts b) 3.4 x 105 volts c) 5.1 x 105 volts d) 7.7 x 105 volts e) 1.2 x 106 volts

## D

1 How fast is a 2952 eV electron moving?

 a) 6.4 x 106 m/s. b) 9.5 x 106 m/s. c) 1.4 x 107 m/s. d) 2.1 x 107 m/s. e) 3.2 x 107 m/s.

2 A proton is accellerated (at rest) from a plate held at 767.8 volts to a plate at zero volts. What is the final speed?

 a) 1.1 x 105 m/s. b) 1.7 x 105 m/s. c) 2.6 x 105 m/s. d) 3.8 x 105 m/s. e) 5.8 x 105 m/s.

3 What voltage is required accelerate an electron at rest to a speed of 3 x 105 m/s?

 a) 1.7 x 10-1 volts b) 2.6 x 10-1 volts c) 3.8 x 10-1 volts d) 5.8 x 10-1 volts e) 8.6 x 10-1 volts

4 What voltage is required to stop a proton moving at a speed of 3.9 x 103 m/s?

 a) 3.5 x 10-2 volts b) 5.3 x 10-2 volts c) 7.9 x 10-2 volts d) 1.2 x 10-1 volts e) 1.8 x 10-1 volts

## E

1 How fast is a 2355 eV electron moving?

 a) 1.9 x 107 m/s. b) 2.9 x 107 m/s. c) 4.3 x 107 m/s. d) 6.5 x 107 m/s. e) 9.7 x 107 m/s.

2 A proton is accellerated (at rest) from a plate held at 4.7 volts to a plate at zero volts. What is the final speed?

 a) 5.9 x 103 m/s. b) 8.9 x 103 m/s. c) 1.3 x 104 m/s. d) 2 x 104 m/s. e) 3 x 104 m/s.

3 What voltage is required accelerate an electron at rest to a speed of 2.8 x 103 m/s?

 a) 4.4 x 10-6 volts b) 6.6 x 10-6 volts c) 9.9 x 10-6 volts d) 1.5 x 10-5 volts e) 2.2 x 10-5 volts

4 What voltage is required to stop a proton moving at a speed of 7.6 x 106 m/s?

 a) 3 x 105 volts b) 4.5 x 105 volts c) 6.8 x 105 volts d) 1 x 106 volts e) 1.5 x 106 volts

## F

1 {How fast is a 2672 eV electron moving?

 a) 6.1 x 106 m/s. b) 9.1 x 106 m/s. c) 1.4 x 107 m/s. d) 2 x 107 m/s. e) 3.1 x 107 m/s.

2 A proton is accellerated (at rest) from a plate held at 318.6 volts to a plate at zero volts. What is the final speed?

 a) 1.6 x 105 m/s. b) 2.5 x 105 m/s. c) 3.7 x 105 m/s. d) 5.6 x 105 m/s. e) 8.3 x 105 m/s.

3 What voltage is required accelerate an electron at rest to a speed of 9.5 x 106 m/s?

 a) 1.1 x 102 volts b) 1.7 x 102 volts c) 2.6 x 102 volts d) 3.8 x 102 volts e) 5.8 x 102 volts

4 What voltage is required to stop a proton moving at a speed of 4.2 x 103 m/s?

 a) 6.1 x 10-2 volts b) 9.2 x 10-2 volts c) 1.4 x 10-1 volts d) 2.1 x 10-1 volts e) 3.1 x 10-1 volts

## G

1 How fast is a 2663 eV electron moving?

 a) 3.1 x 107 m/s. b) 4.6 x 107 m/s. c) 6.9 x 107 m/s. d) 1 x 108 m/s. e) 1.5 x 108 m/s.

2 A proton is accellerated (at rest) from a plate held at 775.8 volts to a plate at zero volts. What is the final speed?

 a) 7.6 x 104 m/s. b) 1.1 x 105 m/s. c) 1.7 x 105 m/s. d) 2.6 x 105 m/s. e) 3.9 x 105 m/s.

3 What voltage is required accelerate an electron at rest to a speed of 5.6 x 104 m/s?

 a) 5.9 x 10-3 volts b) 8.9 x 10-3 volts c) 1.3 x 10-2 volts d) 2 x 10-2 volts e) 3 x 10-2 volts

4 What voltage is required to stop a proton moving at a speed of 8 x 107 m/s?

 a) 3.3 x 107 volts b) 5 x 107 volts c) 7.5 x 107 volts d) 1.1 x 108 volts e) 1.7 x 108 volts

## H

1 How fast is a 2493 eV electron moving?

 a) 1.3 x 107 m/s. b) 2 x 107 m/s. c) 3 x 107 m/s. d) 4.4 x 107 m/s. e) 6.7 x 107 m/s.

2 A proton is accellerated (at rest) from a plate held at 39.7 volts to a plate at zero volts. What is the final speed?

 a) 3.9 x 104 m/s. b) 5.8 x 104 m/s. c) 8.7 x 104 m/s. d) 1.3 x 105 m/s. e) 2 x 105 m/s.

3 What voltage is required accelerate an electron at rest to a speed of 7.6 x 107 m/s?

 a) 3.2 x 103 volts b) 4.9 x 103 volts c) 7.3 x 103 volts d) 1.1 x 104 volts e) 1.6 x 104 volts

4 What voltage is required to stop a proton moving at a speed of 1.6 x 104 m/s?

 a) 4 x 10-1 volts b) 5.9 x 10-1 volts c) 8.9 x 10-1 volts d) 1.3 x 100 volts e) 2 x 100 volts

## I

1 How fast is a 2648 eV electron moving?

 a) 3.1 x 107 m/s. b) 4.6 x 107 m/s. c) 6.9 x 107 m/s. d) 1 x 108 m/s. e) 1.5 x 108 m/s.

2 A proton is accellerated (at rest) from a plate held at 588.2 volts to a plate at zero volts. What is the final speed?

 a) 6.6 x 104 m/s. b) 10 x 104 m/s. c) 1.5 x 105 m/s. d) 2.2 x 105 m/s. e) 3.4 x 105 m/s.

3 What voltage is required accelerate an electron at rest to a speed of 5.5 x 105 m/s?

 a) 2.5 x 10-1 volts b) 3.8 x 10-1 volts c) 5.7 x 10-1 volts d) 8.6 x 10-1 volts e) 1.3 x 100 volts

4 What voltage is required to stop a proton moving at a speed of 8.1 x 104 m/s?

 a) 3.4 x 101 volts b) 5.1 x 101 volts c) 7.7 x 101 volts d) 1.2 x 102 volts e) 1.7 x 102 volts

## J

1 How fast is a 2758 eV electron moving?

 a) 9.2 x 106 m/s. b) 1.4 x 107 m/s. c) 2.1 x 107 m/s. d) 3.1 x 107 m/s. e) 4.7 x 107 m/s.

2 A proton is accellerated (at rest) from a plate held at 729.8 volts to a plate at zero volts. What is the final speed?

 a) 1.7 x 105 m/s. b) 2.5 x 105 m/s. c) 3.7 x 105 m/s. d) 5.6 x 105 m/s. e) 8.4 x 105 m/s.

3 What voltage is required accelerate an electron at rest to a speed of 1.5 x 103 m/s?

 a) 1.9 x 10-6 volts b) 2.8 x 10-6 volts c) 4.3 x 10-6 volts d) 6.4 x 10-6 volts e) 9.6 x 10-6 volts

4 What voltage is required to stop a proton moving at a speed of 5.2 x 107 m/s?

 a) 9.4 x 106 volts b) 1.4 x 107 volts c) 2.1 x 107 volts d) 3.2 x 107 volts e) 4.8 x 107 volts