ESAT Physics Flashcards
6 cards from real ESAT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 ESAT Physics flashcards as text
What does the area under a velocity-time graph represent?
Answer: Displacement
The area under a v-t graph gives displacement, since displacement = velocity × time.
Which law states that the total momentum of a closed system remains constant?
Answer: Conservation of momentum
The law of conservation of momentum states that total momentum is constant in the absence of external forces.
What is the gravitational potential energy of a 5 kg mass at a height of 10 m? (g = 10 m/s²)
Answer: 500 J
GPE = mgh = 5 × 10 × 10 = 500 J.
In ESAT Physics, what does Coulomb's law describe?
Answer: The force between two point charges
Coulomb's law gives the electrostatic force F = kq₁q₂/r² between two point charges.
What is the relationship between pressure, force, and area?
Answer: P = F/A
Pressure is defined as force per unit area: P = F/A.
In a series circuit with resistors R₁ = 3Ω and R₂ = 6Ω, what is the total resistance?
Answer: 9 Ω
Resistors in series add directly: R_total = R₁ + R₂ = 3 + 6 = 9 Ω.