20

300

0.5

17

65

2.9

66

13

1200

Kinetic energy – complete the table, make sure you include working

Mass (kg) Speed (m/s) Working

Type: 0.5 x mass x speed x speed

20

300

0.5

17

65

2.9

66

13

1200

40

2

35

26

5

10

4

1

11

Kinetic energy – complete the table, make sure you include working

Mass (kg) Speed (m/s) Working

Type: 0.5 x mass x speed x speed

20

300

0.5

17

65

2.9

66

13

1200

40

2

35

26

5

10

4

1

11

Kinetic energy – complete the table, make sure you include working

Mass (kg) Speed (m/s)

40

2

35

26

5

10

4

1

11

Working

Type: 0.5 x mass x speed x speed

Kinetic energy

(J)

Kinetic energy

(J)

Kinetic energy

(J)

2000g

30g

500g

110g

55**kg**

290g

6600g

700g

12000g

30g

990g

7**kg**

9.5**kg**

Extension 1

You might have to convert some units now.

1000g = 1kg

So if you have a mass in g, you need to divide by 1000 to get to kg.

Mass

2000g

30g

500g

110g

55**kg**

290g

6600g

700g

12000g

30g

990g

7**kg**

9.5**kg**

Extension 1

Mass (kg)

**USE THIS **

**ONE **

Speed (m/s)

4

5

55

1.5

50

30

10

8

2

11

3.5

3

6

Working

You might have to convert some units now.

1000g = 1kg

So if you have a mass in g, you need to divide by 1000 to get to kg.

Mass Mass (kg)

**USE THIS **

**ONE **

Speed (m/s)

4

5

55

1.5

50

11

3.5

3

6

30

10

8

2

Working

Kinetic energy (J)

Kinetic energy (J)

*1) Lydia drives her car at a speed of 30m/s. If the combined mass of her and the car is *

*1000kg what is her kinetic energy? *

*2) Sam rides her bike at a speed of 10m/s. If the combined mass of Sam and her bike is *

*80kg what is her kinetic energy? *

*3) Josh is trying to catch a bus and is running at 3m/s. If he has a mass of 60kg how much kinetic energy does he have? *

*4) A 2000kg car is being driven at a speed of 10m/s. If it doubles its speed to 20m/s what happens to the car’s kinetic energy? a) b) c)*

*HINT work out the kinetic energy at 10m/s *

*Now work out the kinetic energy at 20m/s *

*How much has it increased, has it *

*A Doubled B Halved C Multiplied by four *

*5) Lydia drives her car at a speed of 30m/s. If the combined mass of her and the car is *

*1000kg what is her kinetic energy? *

*6) Sam rides her bike at a speed of 10m/s. If the combined mass of Sam and her bike is *

*80kg what is her kinetic energy? *

*7) Josh is trying to catch a bus and is running at 3m/s. If he has a mass of 60kg how much kinetic energy does he have? *

*8) A 2000kg car is being driven at a speed of 10m/s. If it doubles its speed to 20m/s what happens to the car’s kinetic energy? d) e) f)*

*HINT work out the kinetic energy at 10m/s *

*Now work out the kinetic energy at 20m/s *

*How much has it increased, has it *

*A Doubled B Halved C Multiplied by four *