HS Science Mind Games

What is the force acting on a 10 kg object accelerating at 2 m/s²?

• 5 N

• 10 N

• 20 N

• 40 N

A car travels 120 km in 2 hours. What is its average speed?

• 50 km/h

• 60 km/h

• 80 km/h

• 100 km/h

What is the kinetic energy of a 5 kg object moving at 3 m/s?

• 15 J

• 22.5 J

• 30 J

• 45 J

If a 50 W light bulb runs for 3 hours, how much energy does it consume?

• 5400 J

• 540,000 J

• 180,000 J

• 300,000 J

A 1000 kg car is moving at 20 m/s. What is its momentum?

• 20,000 kg·m/s

• 10,000 kg·m/s

• 15,000 kg·m/s

• 25,000 kg·m/s

What is the work done by a 10 N force moving an object 5 meters?

• 10 J

• 25 J

• 50 J

• 100 J

A wave has a frequency of 5 Hz and a wavelength of 2 m. What is its speed?

• 5 m/s

• 10 m/s

• 15 m/s

• 20 m/s

An object falls from a height of 20 m. What is its velocity just before hitting the ground? (Assume g = 9.8 m/s²)

• 14 m/s

• 16 m/s

• 20 m/s

• 25 m/s

A circuit has a voltage of 12 V and a resistance of 4 Ω. What is the current?

• 2 A

• 3 A

• 4 A

• 6 A

What is the molar mass of H₂O?

• 16 g/mol

• 18 g/mol

• 20 g/mol

• 22 g/mol