*. Which of the
following pair of instruments would you use to measure the speed of a
toy car?
A stopwatch and spring balance
B spring balance and micrometer
C measuring
tape and micrometer
D stopwatch and measuring tape
*. Which of the following
situations indicates zero acceleration?
A A
durian falling down from the tree.
B A netball is thrown up to the sky at the
beginning of the game.
C A force of 2 N, acting on a toy car which is
on a rough surface with frictional force of 2 N.
D An aircraft climbing up to a certain height
*. Momentum is defined as
A.
mass x velocity
B.
mass x (velocity)2
C.
mass x
acceleration
D.
mass x
displacement
*. All the forces acting on an object are
balanced. What is the type of motion of the object?
A.
The object
accelerates.
B.
The object
decelerates.
C.
The object moves
with constant velocity.
D.
The object moves
with increasing velocity.
*. Which of the following is an effect of a
constant force exerted on an object?
A.
Change of velocity
B.
Change of weight
C.
Change of mass