Question 1 of 25
Hints left: 3
Q1
The force that keeps planets in orbit around the sun is?
Q2
The potential energy of an object is due to its?
Q3
Which subatomic particle has a negative charge?
Q4
The SI unit of energy is?
Q5
Which phenomenon explains the blue color of the sky?
Q6
The force of gravity on the moon is approximately what fraction of that on Earth?
Q7
Which form of energy is associated with an object’s height?
Q8
The angle between the incident ray and the normal is called the ___?
Q9
What is the speed of light in a vacuum?
Q10
What happens to an object when the net force acting on it is zero?
Q11
The rate of flow of electric charge is known as?
Q12
What is the term for the change in state from liquid to gas?
Q13
The SI unit of power is?
Q14
In optics, what is the term for the bending of light as it passes from one medium to another?
Q15
The principle stating that the volume of a gas is directly proportional to its temperature at constant pressure is known as?
Q16
What is the force that opposes the relative motion of two surfaces in contact?
Q17
What is the effect of increasing the amplitude of a sound wave?
Q18
In which process does a heavy nucleus split into two smaller nuclei?
Q19
Which physical law states that the total energy radiated by a black body is proportional to the fourth power of its temperature?
Q20
The energy associated with the movement of particles within a substance is known as?
Q21
What is the escape velocity from Earth?
Q22
The phenomenon where light is absorbed and re-emitted in different directions by particles is known as?
Q23
Which property of a sound wave is associated with its loudness?
Q24
What is the principle behind hydraulic lifts?
Q25
Which quantity is defined as the rate of doing work?