Forces in Physics

What happens to the density of the atmosphere as altitude increases?

What is the main reason for the difference in pressure between the top and bottom surfaces of a partially submerged object?

What is the term for the resultant force upward experienced by a partially submerged object?

What is the difference between distance and displacement?

What is the characteristic of the atmosphere that makes it transparent to solar radiation?

What does a sharper gradient on a displacement-time graph represent?

What is the difference between speed and velocity?

What can be calculated by drawing a tangent on a displacement-time graph?

What does the area under a velocity-time graph represent?

What does a horizontal line on a displacement-time graph indicate?

What does a negative gradient on a velocity-time graph represent?

What is the reason for the gravitational attraction between two objects?

What is the unit of measurement for weight?

What is the relationship between the mass of an object and its gravitational field strength?

Why does a person's weight change when they move to a different planet?

What is the purpose of a force meter, also known as a calibrated spring-balance?

What is the value of g on Earth?

What is the unit of force in the equation F = ma?

What is the term for the measure of how difficult it is to change the velocity of an object?

What is the result when a rocket exerts a force on the gases being ejected?

What is the distance travelled by a vehicle during the time it takes to react to a hazard?

What is the factor that affects the braking distance of a vehicle?

What is the unit of momentum?

What is always conserved in a collision or explosion with no external forces?

What does Newton's Second Law of Motion state?

What is the purpose of crumple zones in a car?

What is the purpose of seatbelts in a car?

What is the purpose of airbags in a car?

Why is braking hard dangerous?