WorksheetsSchoolhouse - Nova (Round 1) 🌌
Total questions: 18
Worksheet time: 30mins
A ball is thrown vertically upward with an initial velocity of 10 m/s. How long will it take for the ball to reach its maximum height? (Assume gravity = 9.8 m/s²)
1.02 seconds
0.98 seconds
2.04 seconds
0.51
Which of the following experiments confirmed the existence of the electron?
Millikan oil-drop experiment
Rutherford gold foil experiment
Thomson's cathode ray tube experiment
Photoelectric effect experiment
A 2 kg object is sliding on a frictionless surface at 5 m/s. What is its kinetic energy?
25J
50J
10J
5J
Why does ice float on water even though the solid form of a compound is typically denser than the liquid form?
Which fundamental force is responsible for holding the nucleus of an atom together?
Electromagnetic force
Gravitational force
Strong nuclear force
Weak nuclear force
What is the SI unit of electric current?
Volt
Ohm
Ampere
Coulomb
Which scientist formulated the theory of general relativity?
Isaac Newton
Niels Bohr
Albert Einstein
Max Planck
Two resistors of 4Ω and 6Ω are connected in parallel. What is the equivalent resistance?
2.4Ω
10Ω
2Ω
5Ω
A spring with spring constant 200 N/m is compressed by 0.1 m. How much energy is stored in the spring?
1 J
2 J
20 J
0.5 J
Explain how thermal expansion affects the design of bridges.
A 4 kg object falls from a height of 5 meters. What is its potential energy at the starting position? (g = 9.8 m/s²)
98 J
196 J
49 J
19.6 J
A 60-watt lightbulb is connected to a 120-volt power source. What is the current flowing through the bulb?
0.5 A
2 A
7200 A
0.2 A
Explain why a bicycle wheel keeps spinning after you stop pedaling, and what eventually causes it to stop.
Describe what happens to an object's weight when it is submerged in water, and explain the physics principles involved.
For a satellite in orbit, which of the following provides the centripetal force?
Thrust from engines
Gravity
Electromagnetism
Air resistance
A car accelerates from 0 to 20 m/s in 5 seconds. What is its acceleration?
2 m/s²
4 m/s²
0.25 m/s²
10 m/s²
Define Electricity
Explain how a microwave oven heats food and why some materials should not be placed in a microwave.
