Homework Practice

Printable assignment

Force Starter: Push, Pull and Friction

Section A: Force, Direction and Net Force

Question 1mcq

Force is a vector quantity because it has:

A.Only direction

B.Magnitude and direction

C.Only colour

D.Only magnitude

Question 2mcq

Two equal forces act in opposite directions on a box. The net force is:

A.Half one force

B.Always upward

C.Double one force

D.Zero

Question 3mcq

Balanced forces cause:

A.No change in state of motion

B.Always heating

C.Always acceleration

D.Always rotation

Question 4mcq

Unbalanced forces can:

A.Remove mass

B.Change speed or direction

C.Make net force zero

D.Only keep rest forever

Question 5mcq

A moving ball slows down on grass mainly because:

A.Mass becomes zero

B.Balanced forces increase speed

C.Gravity disappears

D.Friction acts opposite motion

Question 6mcq

If an object moves with constant velocity in a straight line, resultant force is:

A.Equal to speed

B.Zero

C.Equal to mass

D.Always positive

Section B: Friction in Daily Life

Question 7mcq

Friction generally acts:

A.Only upward

B.Only in liquids

C.In the same direction always

D.Opposite to relative motion

Question 8mcq

We can walk because friction between shoes and ground:

A.Provides grip

B.Removes gravity

C.Makes mass zero

D.Stops muscles

Question 9mcq

Oil is used in machines to:

A.Increase wear

B.Reduce friction

C.Remove force

D.Increase mass

Question 10mcq

Tyres have treads mainly to:

A.Increase grip with road

B.Remove weight

C.Stop all motion

D.Make tyres transparent

Question 11mcq

A book resting on a table has balanced forces because:

A.Only gravity acts

B.No forces act on it

C.It has no mass

D.Weight is balanced by normal reaction

Question 12mcq

A shopping cart speeds up when pushed harder because:

A.Speed cannot change

B.Net force increases acceleration

C.Friction becomes gravity

D.Mass disappears