A parachutist

• Young Digital Planet
• Key Stage 4
• Physics
• III. Forces and motion
• 14. Inertia

• Exam Specifications
• Key Stage 4
• AQA GCSE Physics (4451)
• V. Physics 2
• 18. How do we make things speed up or slow down?
• to draw and interpret velocity-time graphs for bodies that reach terminal velocity, including a consideration of the forces acting on the body
• to calculate the weight of a body using: weight (newton, N) = mass (kilogram, kg) x gravitational field strength (newton/kilogram, N/kg)
• Whenever two bodies interact, the forces they exert on each other are equal and opposite.
• A number of forces acting on a body may be replaced by a single force which has the same effect on the body as the original forces all acting together. The force is called the resultant force.
• If the resultant force acting on a stationary body is zero the body will remain stationary.
• If the resultant force acting on a stationary body is not zero the body will accelerate in the direction of the resultant force.
• If the resultant force acting on a moving body is zero the body will continue to move at the same speed and in the same direction.
• If the resultant force acting on a moving body is not zero the body will accelerate in the direction of the resultant force.
• Force, mass and acceleration are related by the equation: resultant force (newton, N) = mass (kilogram, kg) x acceleration (metre/second2, m/s2)
• AQA GCSE Science A (4461) Physics
• III. Additional materials
• 1. Additional materials
• Additional materials
• AQA GCSE Physics (4451)
• I. Physics 2
• 2. How do we make things speed up or slow down?
• to draw and interpret velocity-time graphs for bodies that reach terminal velocity, including a consideration of the forces acting on the body
• to calculate the weight of a body
• Whenever two bodies interact, the forces they exert on each other are equal and opposite.
• A number of forces acting on a body may be replaced by a single force which has the same effect on the body as the original forces all acting together. The force is called the resultant force.
• If the resultant force acting on a stationary body is zero the body will remain stationary.
• If the resultant force acting on a stationary body is not zero the body will accelerate in the direction of the resultant force.
• If the resultant force acting on a moving body is zero the body will continue to move at the same speed and in the same direction.
• If the resultant force acting on a moving body is not zero the body will accelerate in the direction of the resultant force.
• Force, mass and acceleration are related by the equation: resultant force = mass × acceleration/

law , force , motion , first , uniform , parachutist , Newton , resultant , drag , newton's , inertia , resultant force , uniform motion , drag force , Newton's First Law of Motion , a parachutist