Activity: FORCE AND ENERGY CONCEPT TEST

1.     Which of the following properties of two moving objects having equal masses and kinetic energies is exactly the same?

• A) Potential Energies

• B) Volumes

• C) Heights

• D) Speeds

2. Which of the following is true about the friction force?

• A) Its direction is always opposite to the direction of movement of the object.

• B) It always makes movement easier.

• C) It is a force that requires contact.

• D) It always changes the direction of movement of the objects.

3. Which of the following statements is true?

• A) The energy of a person in motion ends as soon as it stops.

• B) A person standing on the top floor of the skyscraper has no energy.

• C) Energy is always conserved.

• D) Different types of energy can be interchanged.

4. A student sees the box shrink when he draws the air from the juice with a pipette. This situation is explained by which of the following?

• A) The pressure of the gases increases with temperature

• B) The presence of atmospheric air pressure

• C) Liquids transmit pressure exactly

• D) The presence of pressure force

5. Ali moves an object on the horizontal plane by pushing it.  Which of the following amounts does Ali’s work not depend on?

I. The magnitude of the applied force

II. The weight of the object

III. The length of the distance where the force is applied

• A) Only I

• B) Only II

• C) Only III

• D) I and II

6. An astronaut made measurements with equal-arm scale on the Moon and Earth. The measurements of the astronaut are given in the table below. In this case, please list the values of these objects measured on the Earth with a dynamometer.

• A) A>B>C>D      

• B) B>D>A>C      

• C) A=B>C=D        

• D) A=C>B=D

7. Which of the following(s) is/are the impact(s) of atmospheric pressure on our daily lives?

I. Shaking of the bottle when pouring cologne

II. Suction and force pumps

III. Vacuum bags

IV. Drawing liquid to the injector

• A) I and III

• B) II, III and IV

• C) I, II and III

• D) I, II, III and IV

8. Which of the following(s) is/are the reason(s) why large-soles shoes are preferred to walk on a snowy road without falling?

I. To reduce friction thanks to the large sole of the shoes

II. To reduce pressure due to surface expansion

III. To prevent sinking as a result of weight reduction

• A)   Only I

• B)   Only II

• C)   I and II

• D)   II and III

9. The container in the figure contains different immiscible liquids A, B, C of equal height. Accordingly, what are the liquid pressures P_K, P_L, P_M in K, L, M points?

• A) P_K= P_L= P_M

• B) P_K> P_L> P_M

• C) P_M> P_L> P_K

• D) P_K> P_M >P_L

10. The identical K, L, M springs given in the figure are hung objects weighing 5N, 15N, and 40N respectively. Which of the following is true for E_K, E_L, E_M which are flexibility potential energy stored in springs after hanging objects?

• A) They all have equal energy.

• B) The largest energy is E_K.

• C) The largest energy is E_M.

• D) We can’t know that with the information provided.