First Periodical Test in General Physics 1

Which of the following is an example of a vector quantity?

• acceleration

• mass

• volume

• temperature

Displacement is a _____________.

• base quantity

• derived quantity

• scalar quantity

• vector quantity

Identify the following quantities as scalar or vector: the mass of an object, the number of leaves on a tree and wind velocity.

• vector, scalar, scalar

• vector, scalar, vector

• scalar, scalar, vector

• scalar, vector, vector

If two forces 20 N towards North and 12 N towards South are acting on an object. What will be the resultant force?

• 32 N North

• 20 N South

• 32 N South

• 8 N North

Tags

NGSS.HS-PS2-1

A student adds two displacement vectors with magnitudes of 3 m and 4 m respectively. Which one of the following could not be a possible choice for the resultant?

• 1.3 m

• 3.3 m

• 5 m

• 6.8 m

Find the displacement a hiker walks if he travels 9.0 km north, and then turns around and walks 3.0 km south?

• 0.5 km

• 3.0 km

• 6.0 km

• 12.0 km

A runway dog walks 0.64 km due N. He then runs due W to a hot dog stand. If the magnitude of the dog’s total displacement vector is 0.91 km, what is the magnitude of the dog’s displacement vector in the due west direction?

• 0.27 km

• 0.33 km

• 0.41 km

• 0.52 km

An escaped convict runs 1.70 km due East of the prison. He then runs due North to a friend’s house. If the magnitude of the convict’s total displacement vector is 2.50 km, what is the direction of his total displacement vector with respect to due East?

• 34⁰ SE

• 43⁰ SE

• 47⁰ NE

• 56⁰ NE

Two vectors A and B are added together to form a vector C. The relationship between the magnitudes of the vectors is given by A + B = C. Which one of the following statements concerning these vectors is true?

• A and B must be displacements

• A and B must have equal lengths

• A and B must point in opposite directions

• A and B point in the same direction

Which expression is FALSE concerning the vectors are shown in the sketch?

• C = A + B

• C + A = -B

• A + B + C = 0

• C < A + B

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2