Converting Energy Units

How many joules are equivalent to 500 calories?

Conversion factor: 1 cal = 4.184 J

• 2,092 J

• 2,092 J

• 209.2 J

• 209.2 J

Convert 2,000 calories to kilojoules.

Conversion factors: 1 cal = 4.184 J; 1 kJ = 1,000 J

• 8.37 kJ

• 4.18 kJ

• 2.09 kJ

• 8.368 kJ

How many kilocalories are in 12,000 joules?

Conversion factors: 1 kcal = 1,000 cal; 1 cal = 4.184 J

• 2.87 kcal

• 28.7 kcal

• 2.00 kcal

• 287 kcal

A meal contains 250 kilocalories. How many joules does this equal?

Conversion factors: 1 kcal = 1,000 cal; 1 cal = 4.184 J

• 1,046 J

• 1,046,000 J

• 104,600 J

• 1,000 J

Tags

NGSS.HS-PS3-3

If a snack contains 0.5 kilojoules, how many calories does it provide?

Conversion factors: 1 kJ = 1,000 J; 1 cal = 4.184 J

• 119.5 cal

• 119.5 cal

• 1.195 cal

• 11.95 cal

Tags

NGSS.HS-PS3-1

Convert 75 kilojoules to kilocalories.

Conversion factors: 1 kJ = 1,000 J; 1 cal = 4.184 J; 1 kcal = 1,000 cal

• 17.93 kcal

• 179.3 kcal

• 7.93 kcal

• 19.3 kcal

How many joules are in 3.5 kilocalories?

Conversion factors: 1 kcal = 1,000 cal; 1 cal = 4.184 J

• 14, 644 J

• 14, 644, 000 J

• 14, 644 J

• 1, 464, 4 J

Convert 5,000 joules to kilocalories.

Conversion factors: 1 cal = 4.184 J; 1 kcal = 1,000 cal

• 1.2 kcal

• 1.5 kcal

• 1.2 cal

• 12 kcal

Tags

NGSS.HS-PS3-1

A beverage contains 80 calories. How many kilojoules does this equal?

Conversion factors: 1 cal = 4.184 J; 1 kJ = 1,000 J

• 0.334 kJ

• 334.72 kJ

• 33.472 kJ

• 3.347 kJ

A diet recommends consuming 2,000 kilocalories per day. How many kilojoules is this?

Conversion factors: 1 kcal = 1,000 cal; 1 cal = 4.184 J; 1 kJ = 1,000 J

• 8,368 kJ

• 8,380 kJ

• 83.68 kJ

• 83,680 kJ