Year 7 Forces

Non-Contact Force

• A force that requires physical contact to act.

• A force that acts at a distance, without touching (like gravity or magnetism).

• A force that only acts in a vacuum.

• A force that can only be observed through direct interaction.

Magnetic Force

• A non-contact force between magnets or between a magnet and metal.

• A force that requires physical contact between objects.

• A force that only acts on electrically charged particles.

• A force that can only be observed in the presence of gravity.

Friction

• A force that speeds things up when two surfaces rub against each other.

• A contact force that slows things down when two surfaces rub against each other.

• A force that has no effect on motion between surfaces.

• A force that only occurs in liquids.

Trend

• A sudden change in data

• A pattern or direction of data over time (e.g. increasing, decreasing, steady)

• A random fluctuation in data

• A one-time event in data analysis

Force

• A push or pull or twist on an object.

• A type of energy that can be converted into work.

• The mass of an object multiplied by its velocity.

• A measure of the distance an object travels.

Gravity

• A force that pushes objects away from the Earth.

• A non-contact force that pulls objects towards the Earth.

• A force that only affects large objects like planets.

• A force that can be turned on and off.

Lift

• The downward force that pulls planes towards the earth.

• The upward force that helps planes rise into the air.

• The force that propels planes forward.

• The resistance force that opposes the motion of planes.

Static Electricity

• A build-up of electric charge that can attract or repel objects.

• A type of current that flows continuously in one direction.

• A phenomenon that occurs only in wet conditions.

• A measure of the resistance of a material to electric flow.

Net Force

• The total force acting on an object after all forces are combined.

• The force that opposes motion.

• The force exerted by gravity on an object.

• The force that causes an object to accelerate.

Contact Force

• A force that acts at a distance without contact.

• A force that needs two objects to touch to work (like friction or push).

• A force that only occurs in liquids and gases.

• A force that is always attractive.