Homework Practice

Printable assignment

Newton’s First and Second Law: Inertia to Acceleration

Section A: First Law and Inertia

Question 1mcq

Newton’s first law is also called the law of:

A.Acceleration only

B.Conservation of energy

C.Inertia

D.Action-reaction

Question 2mcq

An object at rest remains at rest unless:

A.Its colour changes

B.Time stops

C.An unbalanced force acts on it

D.Balanced forces act

Question 3mcq

Passengers lurch forward when a bus stops suddenly due to:

A.Inertia of motion

B.Inertia of rest only

C.Friction disappearing

D.Gravity reversing

Question 4mcq

Dust comes out when a carpet is beaten because dust tends to:

A.Become weightless

B.Accelerate upward automatically

C.Change into gas

D.Remain at rest

Question 5mcq

A heavier object usually has greater inertia because inertia depends on:

A.Shape only

B.Mass

C.Colour

D.Temperature only

Question 6mcq

Seat belts reduce injury mainly by:

A.Making car mass zero

B.Restraining the body during sudden stopping

C.Increasing inertia

D.Removing all force

Section B: Second Law and Force Calculations

Question 7mcq

Newton’s second law relates force to:

A.Only volume

B.Only temperature

C.Mass and acceleration

D.Only colour

Question 8mcq

A 5 kg object accelerates at

2\ m/s^2

. Force is:

2.5\ N

10\ N

25\ N

7\ N

Question 9mcq

One newton is the force that gives

1\ kg

mass an acceleration of:

1\ m/s^2

10\ m/s

9.8\ m/s^2

1\ m

Question 10mcq

If force is

24\ N

and mass is

6\ kg

, acceleration is:

144\ m/s^2

30\ m/s^2

4\ m/s^2

18\ m/s^2

Question 11mcq

For the same force, doubling mass makes acceleration:

A.Half

B.Four times

C.Double

D.Zero always

Question 12mcq

A change in velocity is evidence of:

A.No motion

B.Acceleration due to unbalanced force

C.Zero force always

D.Balanced force only