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.Direction

C.Shape only

D.Taste

Question 2mcq

Net force is zero in:

A.Balanced forces

B.Free fall only

C.Unbalanced forces

D.Acceleration always

Question 3mcq

Unbalanced force causes:

A.No change ever

B.Only rest

C.No acceleration

D.Change in motion

Question 4mcq

Friction is useful when:

A.It always stops work

B.It causes machine wear

C.Walking on ground

D.It heats parts unnecessarily

Section B: Newton’s Laws

Question 5mcq

First law explains:

A.Echo

B.Inertia

C.Mechanical advantage

D.Potential energy

Question 6mcq

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

A.Inertia of rest

B.No mass

C.Only friction

D.Acceleration upward

Question 7mcq

Second law is commonly written as:

v=f\lambda

P=W/t

W=Fs

F=ma

Question 8mcq

Mass

3\ kg

, acceleration

4\ m/s^2

. Force:

1.33\ N

7\ N

12\ N

24\ N

Question 9mcq

SI unit of force is:

A.hertz

B.newton

C.watt

D.joule

Question 10mcq

Action and reaction are equal in magnitude and:

A.Opposite in direction

B.Unrelated

C.Same direction

D.Always zero

Question 11mcq

Rocket moves upward because gases are pushed:

A.Nowhere

B.Upward only

C.Sideways only

D.Downward

Question 12mcq

A seat belt mainly helps overcome effects of:

A.Zero mass

B.No gravity

C.Inertia during sudden stop

D.Frictionless road

Section C: Net Force and Inquiry

Question 13mcq

Constant velocity means acceleration is:

A.Equal to mass

B.Zero

C.Negative always

D.Maximum

Question 14mcq

Acceleration means change in:

A.Velocity

B.Colour

C.Mass

D.Material

Question 15mcq

A force model should show:

A.No measurements

B.Only decoration

C.Unrelated labels

D.Variables like mass, force and acceleration

Question 16mcq

Repeating measurements improves:

A.Mass

B.Randomness

C.Reliability

D.Bias