General Physics: 5 questions

1. Newton's first law says that force is directly proportional to acceleration and inversely proportional to mass.

a. True

b. False

2. We can say what mass is:

a. Weight quantity

b. Amount of matter

c. Amount of force

d. Moment quantity

3. How many significant figures does the following number have 3.995 ?

a. 2

b. 4

c. 1

d. 3

4. A driver travels down a street at 55 km/h. Suddenly, a boy runs out into the street. If it takes the driver 0.75s to react and press the brakes, how many meters will he travel before starting to brake?

a. 11.45cm

b. 11.45m

c. 11.45Km

5. When a property is conserved and remains during an interaction it is known:

a. Newton's law

b. The law of conservation

c. The law of impulse

d. Boyle's law