Chapter 4.1, 4.2, 4.3 and more!!

Question 1

The SI base unit used to measure mass is the

Accepted Answer

kilogram

Question 2

What causes a moving object to change direction?

Accepted Answer

force

Question 3

Which of the following forces is an example of a contact force?

Accepted Answer

frictional force

Question 4

Which of the following units is the SI unit of velocity?

Accepted Answer

meter per second

Question 5

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

Accepted Answer

velocity

Question 6

A free-body diagram represents all of the following except

Accepted Answer

forces exerted by the object.

Question 7

Which of the following is a physical quantity that has a magnitude but no direction?

Accepted Answer

scalar

Question 8

A small force acting on a human-sized object causes

Accepted Answer

a small acceleration

Question 9

What is the path of a projectile?

Accepted Answer

a parabola

Question 10

Objects that are falling toward Earth in free fall move

Accepted Answer

faster and faster.

Question 11

Acceleration due to gravity is also called

Accepted Answer

free-fall acceleration.

Question 12

If a nonzero net force is acting on an object, then the object is definitely

Accepted Answer

being accelerated

Question 13

Which are simultaneous equal but opposite forces resulting from the interaction of two objects?

Accepted Answer

action-reaction pairs

Question 14

Which would hit the ground first if dropped from same height in a vacuum feather/metal bolt?

Accepted Answer

They would hit the ground at the same time

Question 15

Newton’s third law of motion involves the interactions of

Accepted Answer

two objects and two forces.

Question 16

The Greek letter Σ means what?

Accepted Answer

the sum of the quantities

Question 17

Which of the following is the cause of an acceleration?

Accepted Answer

force

Question 18

Which of the following force exists between objects in the absence of direct physical contact?

Accepted Answer

field force

Question 19

Which of the following is an example of projectile motion?

Accepted Answer

a baseball being thrown

Question 20

The length of a force vector represents the

Accepted Answer

magnitude of the force

Question 21

Which of the following is the tendency of an object to maintain its state of motion?

Accepted Answer

inertia

Question 22

Acceleration is defined as

Accepted Answer

the rate of change of velocity

Question 23

Which of the following forces is an example of a field force?

Accepted Answer

gravitational force

Question 24

The SI base unit for time is

Accepted Answer

1 second

Question 25

A newton is equivalent to which of the following quantities?

Accepted Answer

kg•m/s2

Question 26

Multiplying or dividing vectors by scalars results in

Accepted Answer

vectors

Question 27

The Greek letter Δ indicates a(n)

Accepted Answer

difference or change

Chapter 4.1, 4.2, 4.3 and more!!

Questions 27

Chapter 4.1, 4.2, 4.3 and more!!

Questions 27