Interpreting data from tables and graphs

Question 1

Study: Cooling coffee. Time (min) → Temperature (°C) 0 → 83 5 → 73 10 → 63 15 → 53 20 → 43 Estimate the value at 7.5, assuming the pattern between neighbouring points is a straight line.

Answer 

Question 2

Study: Enzyme activity. Temperature (°C) → Reaction rate (units/min) 10 → 0 20 → 20 30 → 41 40 → 62 50 → 41 60 → 20 At which value of “Temperature (°C)” was the highest value recorded?

• A. 10
• B. 20
• C. 40
• D. 50

Question 3

Study: Stretching a spring. Force (N) → Extension (cm) 0 → 0 1 → 4 2 → 8 3 → 12 4 → 16 5 → 20 How does “Extension (cm)” change as “Force (N)” increases?

• A. It stays about the same.
• B. It decreases steadily.
• C. It increases to a maximum, then decreases.
• D. It increases steadily.

Question 4

Study: Stretching a spring. Force (N) → Extension (cm) 0 → 0 1 → 2 2 → 4 3 → 6 4 → 8 5 → 10 Estimate the value at 0.5, assuming the pattern between neighbouring points is a straight line.

Answer 

Question 5

Study: Stretching a spring. Force (N) → Extension (cm) 0 → 0 1 → 5 2 → 10 3 → 15 4 → 20 5 → 25 At which value of “Force (N)” was the lowest value recorded?

• A. 0
• B. 1
• C. 2
• D. 3

Question 6

Study: Stretching a spring. Force (N) → Extension (cm) 0 → 0 1 → 2 2 → 4 3 → 6 4 → 8 5 → 10 How does “Extension (cm)” change as “Force (N)” increases?

• A. It increases steadily.
• B. It increases to a maximum, then decreases.
• C. It stays about the same.
• D. It decreases steadily.

Question 7

Study: Light and pondweed. Distance from lamp (cm) → Bubbles per minute 10 → 43 20 → 37 30 → 31 40 → 25 50 → 19 Estimate the value at 45, assuming the pattern between neighbouring points is a straight line.

Answer 

Question 8

Study: Enzyme activity. Temperature (°C) → Reaction rate (units/min) 10 → 0 20 → 20 30 → 40 40 → 60 50 → 40 60 → 20 At which value of “Temperature (°C)” was the highest value recorded?

• A. 10
• B. 20
• C. 40
• D. 50

Question 9

Study: Enzyme activity. Temperature (°C) → Reaction rate (units/min) 10 → 2 20 → 20 30 → 38 40 → 56 50 → 38 60 → 20 How does “Reaction rate (units/min)” change as “Temperature (°C)” increases?

• A. It decreases steadily.
• B. It increases steadily.
• C. It stays about the same.
• D. It increases to a maximum, then decreases.

Question 10

Study: Solubility of a salt in water. Temperature (°C) → Solubility (g per 100 g water) 0 → 12 20 → 26 40 → 40 60 → 54 80 → 68 Estimate the value at 70, assuming the pattern between neighbouring points is a straight line.

Answer 

Question 11

Study: Light and pondweed. Distance from lamp (cm) → Bubbles per minute 10 → 46 20 → 40 30 → 34 40 → 28 50 → 22 At which value of “Distance from lamp (cm)” was the highest value recorded?

• A. 10
• B. 20
• C. 30
• D. 40

Question 12

Study: Light and pondweed. Distance from lamp (cm) → Bubbles per minute 10 → 58 20 → 52 30 → 46 40 → 40 50 → 34 How does “Bubbles per minute” change as “Distance from lamp (cm)” increases?

• A. It increases steadily.
• B. It decreases steadily.
• C. It stays about the same.
• D. It increases to a maximum, then decreases.

Question 13

Study: Light and pondweed. Distance from lamp (cm) → Bubbles per minute 10 → 46 20 → 40 30 → 34 40 → 28 50 → 22 Estimate the value at 45, assuming the pattern between neighbouring points is a straight line.

Answer 

Question 14

Study: Light and pondweed. Distance from lamp (cm) → Bubbles per minute 10 → 43 20 → 37 30 → 31 40 → 25 50 → 19 At which value of “Distance from lamp (cm)” was the highest value recorded?

• A. 10
• B. 20
• C. 40
• D. 50

Question 15

Study: Stretching a spring. Force (N) → Extension (cm) 0 → 0 1 → 2.5 2 → 5 3 → 7.5 4 → 10 5 → 12.5 How does “Extension (cm)” change as “Force (N)” increases?

• A. It increases steadily.
• B. It stays about the same.
• C. It increases to a maximum, then decreases.
• D. It decreases steadily.

Question 16

Study: Cooling coffee. Time (min) → Temperature (°C) 0 → 83 5 → 73 10 → 63 15 → 53 20 → 43 Estimate the value at 12.5, assuming the pattern between neighbouring points is a straight line.

Answer