We get sucrose and water if we chemically combine
a. fructose and maltose.
b. glucose and fructose.
c. maltose and lactose.
d. glucose and lactose.
[Ques. 2] A student weighing 200 N climbs a flight of stairs 9.0 m high in 4 s. What power is required to perform this task?
a. 1800 J
b. 800 J
c. 1800 W
d. 800 W
e. 450 W
[Ques. 3] The suffix -ol in a compound's name signifies
a. an enzyme.
b. an amide.
c. an alcohol.
d. a carbohydrate.
[Ques. 4] A student weighing 300 N climbed a flight of stairs 5.0 m high in 6 s. How much work was done by the student?
a. 1500 J
b. 1800 J
c. 1500 W
d. 1800 W
e. 50 W
[Ques. 5] Which sugar is a chemically bonded combination of two other sugars?
a. Sucrose
b. Lactose
c. Glucose
d. Fructose
[Ques. 6] A 1000-kg car traveling at 70 m/s takes 3 m to stop under full braking. The same car under similar road conditions, traveling at 140 m/s, takes ______________ m to stop under full braking.
a. 6
b. 1
c. 3
d. 12
e. 11
[Ques. 7] Which sugar is the sweetest of all sugars?
a. Sucrose
b. Lactose
c. Glucose
d. Fructose
[Ques. 8] When a 6-kg object increases its potential energy by 180 J, approximately how has its position changed?
a. It has risen vertically 3 m.
b. It has fallen vertically 3 m.
c. It has risen vertically 30 m.
d. It has moved horizontally 30 m.
[Ques. 9] Which sugar is found in greater than normal amounts in the blood of a diabetic?
a. Sucrose
b. Lactose
c. Glucose
d. Fructose
[Ques. 10] A 4-kg object falls vertically a distance of 5 m. Its potential energy has changed by approximately how much?
a. It has increased by 20 J.
b. It has decreased by 200 J.
c. It has decreased by 20 J.
d. It has increased by 200 J.
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