ACT Science

Front

What is the benchmark for Science?

Back

23

Front

What does it mean to be “college ready” according to ACT?

Back

capable of earning C or better in first-year college courses

Front

Which graph best illustrates the relationship between the heat released by the foods listed in Table 1 and the change in water temperature? Options: A, B, C, D

Back

B

Front

According to Tables 1 and 2, as the mass of successive sucrose samples increased, the change in the water temperature produced when the sample was burned most likely:

Back

Decreased only

Front

When the mass of sucrose is decreased by one-half, what happens to the amount of heat released when it is burned in a bomb calorimeter?

Back

Increase by one-half

Front

Which of the following lists the foods from Tables 1 and 2 in increasing order of the amount of heat released per gram of food? Options: Potato, egg, bread, sucrose, cheese, Sucrose, cheese, bread, egg, potato, Bread, cheese, egg, potato, sucrose, Sucrose, potato, egg, bread, cheese

Back

Bread, cheese, egg, potato, sucrose

Front

The heat released from the burning of 5.0 g of potato in a bomb calorimeter would be closest to which of the following? 5 kJ, 10 kJ, 15 kJ, 20 kJ

Back

20 kJ

Front

In Experiment 1, the time constant of the circuit was the time required for the voltage across the capacitor to reach approximately 7.6 V. What was the time constant of the circuit used in Experiment 1? Options: Less than 12 sec, Between 12 sec and 24 sec, Between 24 sec and 36 sec, Greater than 36 sec

Back

Less than 12 sec

Front

If a 1.5 × 10–6 F capacitor had been used, the time required for the voltage across the capacitor to reach 6 V would have been closest to:

Back

10.5 sec

Front

The main purpose of Experiment 3 was to determine how varying the capacitor’s capacitance affected the time required for the voltage across the capacitor to reach a set value.

Back

capacitor’s capacitance affected the time required for the voltage across the capacitor to reach a set value.