Homework Practice

Printable assignment

Final Assessment: Force and Laws of Motion

Section A: Force Basics and Friction

Question 1mcq

Force has magnitude and:

A.Colour

B.Shape only

C.Direction

D.Taste

Question 2mcq

Net force is zero in:

A.Free fall only

B.Balanced forces

C.Unbalanced forces

D.Acceleration always

Question 3mcq

Unbalanced force causes:

A.No change ever

B.Only rest

C.Change in motion

D.No acceleration

Question 4mcq

Friction is useful when:

A.It heats parts unnecessarily

B.It always stops work

C.It causes machine wear

D.Walking on ground

Section B: Newton’s Laws

Question 5mcq

First law explains:

A.Inertia

B.Echo

C.Mechanical advantage

D.Potential energy

Question 6mcq

A coin falls into a glass when card is flicked because coin has:

A.Only friction

B.Inertia of rest

C.No mass

D.Acceleration upward

Question 7mcq

Second law is commonly written as:

W=Fs

v=f\lambda

F=ma

P=W/t

Question 8mcq

Mass

3\ kg

, acceleration

4\ m/s^2

. Force:

7\ N

1.33\ N

24\ N

12\ N

Question 9mcq

SI unit of force is:

A.hertz

B.watt

C.joule

D.newton

Question 10mcq

Action and reaction are equal in magnitude and:

A.Unrelated

B.Always zero

C.Opposite in direction

D.Same direction

Question 11mcq

Rocket moves upward because gases are pushed:

A.Upward only

B.Sideways only

C.Downward

D.Nowhere

Question 12mcq

A seat belt mainly helps overcome effects of:

A.Inertia during sudden stop

B.Zero mass

C.Frictionless road

D.No gravity

Section C: Net Force and Inquiry

Question 13mcq

Constant velocity means acceleration is:

A.Zero

B.Equal to mass

C.Negative always

D.Maximum

Question 14mcq

Acceleration means change in:

A.Velocity

B.Mass

C.Material

D.Colour

Question 15mcq

A force model should show:

A.Only decoration

B.Variables like mass, force and acceleration

C.Unrelated labels

D.No measurements

Question 16mcq

Repeating measurements improves:

A.Mass

B.Randomness

C.Reliability

D.Bias