Unit (01) revision Name:
ATL: Critical thinking Class: Date:
Answer the following questions:
1) If the charge of an electron = 1.60 × 10-19C. Find the correct equivalent value with kC.
(k is kilo)
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2) A ball is thrown with velocity u at an angle of 55° above the horizontal. Calculate the
magnitude of the horizontal and the vertical components of the velocity.
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1
3) Find the fundamental units of the kinetic energy (E), knowing that: 𝐾𝐸 = 𝑚. 𝑣 2 ,
2
where v is the velocity and m is the mass quantity.
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4) If there is a force exerted on a body of mass (m) then the body is accelerated by (a):
a) Express the fundamental units of force. (Knowing that it is calculated by the equation:
𝐹 = 𝑚. 𝑎).
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b) The resistive force F acting of a sphere of radius r travelling with speed v through a
liquid is given by the equation: 𝐹 = 6𝜋𝜂𝑣, where 𝜂 is a constant.
Outline the SI units of 𝜂
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ATL: Critical thinking Class: Date:
Answer the following questions:
1) If the charge of an electron = 1.60 × 10-19C. Find the correct equivalent value with kC.
(k is kilo)
…………………………………………………………………………………………………
……………………………………….…………………………………………………………
…………………………………………………………………………………………………
……………………………………….…………………………………………………………
2) A ball is thrown with velocity u at an angle of 55° above the horizontal. Calculate the
magnitude of the horizontal and the vertical components of the velocity.
…………………………………………………………………………………………………
……………………………………….…………………………………………………………
………………………………………………………………………………………………….
………………………………………………………………………………………………….
………………………………………………………………………………………………….
1
3) Find the fundamental units of the kinetic energy (E), knowing that: 𝐾𝐸 = 𝑚. 𝑣 2 ,
2
where v is the velocity and m is the mass quantity.
…………………………………………………………………………………………………
……………………………………….…………………………………………………………
…………………………………………………………………………………………………
……………………………………….…………………………………………………………
…………………………………………………………………………………………………
4) If there is a force exerted on a body of mass (m) then the body is accelerated by (a):
a) Express the fundamental units of force. (Knowing that it is calculated by the equation:
𝐹 = 𝑚. 𝑎).
…………………………………………………………………………………………………
……………………………………….…………………………………………………………
…………………………………………………………………………………………………
……………………………………….…………………………………………………………
b) The resistive force F acting of a sphere of radius r travelling with speed v through a
liquid is given by the equation: 𝐹 = 6𝜋𝜂𝑣, where 𝜂 is a constant.
Outline the SI units of 𝜂
…………………………………………………………………………………………………
……………………………………….…………………………………………………………
…………………………………………………………………………………………………
……………………………………….…………………………………………………………
………………………………………………………………………………………………….
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