Unit Test — Unit test Answers

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Which shows the correct order of stages of technological design?

A
design a solution, identify a problem, evaluate the solution, implement the solution
B
design a solution, implement the solution, evaluate the solution, identify a problem
C
identify a problem, design a solution, implement the solution, evaluate the solution
D
identify a problem, evaluate the solution, design a solution, implement the solution
23
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Anya knows the velocity of an object. What else does she need to know in order to find the object’s momentum?

A
its mass
B
its height
C
its density
D
its speed
24

Which factors can affect the amount of friction acting on an object on a solid surface?

A
the weight of the object and the force of a push
B
the type of surface and the weight of the object
C
the force of a push and the motion of the object
D
the motion of the object and the type of surface
25

The chart lists the masses and velocities of four objects.

Question illustration
A
W
B
X
C
Y
D
Z

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