Imp 10

• A newton is defined as the amount of force required to accelerate an object with mass equal to one kilogram at a rate of one meter per second squared.
• The SI unit of force is the Newton (N).
• Force can be calculated using F = ma, where m is the mass of the object being acted upon by the force and a is its acceleration.
• The SI unit of pressure is Pascal (Pa).
• Pressure can be calculated using the formula P = F/A, where P is pressure, F is force, and A is area.
• Newtons are used to measure forces that act on objects.
• Atmospheric pressure is measured by barometers.
• Forces acting on an object cause it to change direction or speed.
• Pressure is defined as the ratio between the applied force on a surface and that surface's area.
• Newtons are used to measure forces, while pascals are used to measure pressures.
• Pascals are used to measure pressures acting on surfaces.
• An example of a situation involving both force and pressure is when a balloon is inflated with air or gas.
• In physics, there are two types of motion - translational motion and rotational motion.
• There are two types of forces - contact forces and non-contact forces.
• An example of a situation involving both force and pressure is when a balloon is inflated with air or gas.
• Forces have both magnitude and direction, while pressures only have magnitude.
• When a balloon is filled with air, it exerts a force on the walls of the container due to the pressure inside the balloon.
• Friction is a type of contact force that opposes motion between two surfaces.
• Absolute pressure refers to the total amount of pressure acting on an object, including both gauge and atmospheric pressures.
• Kinetic friction occurs when one surface moves over another.
• Static friction occurs when there is no relative movement between two surfaces.
• Gauge pressure measures how much air or gas is inside an enclosed space compared to atmospheric pressure.
• Boyle's Law states that at constant temperature, the volume of a given mass of confined gas varies inversely with the absolute pressure applied to it.
• Force is defined as the product of mass times acceleration.
• Gravity is defined as the attractive force exerted by one body upon another due to their masses.
• Weight is defined as the gravitational pull on an object with mass.