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Which of the following is not correct?

• Displacement is a scalar quantity.
• Displacement is the change in position.
• Displacement is the distance between two points in a certain direction.
• Displacement has both magnitude and direction.
• Displacement is subtracting the initial position from the final position

What does the “force” mean?

• is an interaction between two objects, there is a force upon each of the objects.
• is the force exerted by a surface as an object moves across it or makes an effort to move across it.
• is the force that is transmitted through a string, rope, cable or wire when
• is pulled tight by forces acting from opposite ends.
• is a special type of frictional force that acts upon objects as they travel through the air.

If the object is less dense than the liquid, it will _____

• float
• sink
• submerged
• not change
• change its shape

Choose the synonym to the word “instrument”:

• Tool
• Material
• Substance
• Measure
• Wood

Choose the correct definition for ‘solid’:

• form of matter having hard structure.
• cannot occupy the same place at the same time.
• has neither a definite shape nor volume.
• is measured in cubic decimeters.
• one of three methods of science.

Choose the correct definition for ‘particle’:

• Tiny object
• Form of matter like water, oil, milk, etc.
• A definite shape or volume.
• Is measured in cubic decimeters.
• Is one of three methods of science.

What refers to the concept of 'physical body'?

• Aircraft
• Water
• Meter
• Shine
• Copper

Vectorial parameters that describe translational motion:

• Movement, velocity , average acceleration
• Tangential acceleration, average velocity.
• Normal acceleration, mass
• The passed way, velocity, normal acceleration
• Angular acceleration, tangential acceleration

Choose the correct definition for ‘efficiency’:

• the ratio of the output of work to the input of work
• the product of the force applied upon an object and the distance that the object is moved in the direction of the force.
• the ability to do work
• the amount of work done ( or energy spent ) in a unit of time
• quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work

The vector connecting the start and end position of a point in its motion:

• The movement of the point
• Radius-vector
• Travel
• Trajectory
• The velocity