Quick Test: 1P - Introduction to Forces

A Momentum is the tendency for an object to stay not moving.

B Momentum is the tendency for an object to keep moving as at the same speed only.

C Momentum is the tendency for an object to keep moving in the same direction only.

D Momentum is the tendency for an object to keep moving with the same speed and direction.

A It takes an inertia to change the momentum of an object.

B It takes a balanced forces to change the momentum of an object.

C It takes an acceleration to change the momentum of an object.

D It takes unbalanced forces to change the momentum of an object.

A The amount of friction depends on the width of an object.

B The amount of friction depends on the weight of an object.

C The amount of friction depends on the width of the surfaces.

D The amount of friction depends on the roughness of the surfaces.

A Friction always acts to assist motion and therefore acts in the same direction to the (potential) motion.

B Friction always acts to resist motion and therefore acts in the same direction to the (potential) motion.

C Friction always acts to assist motion and therefore acts in the opposite direction to the (potential) motion.

D Friction always acts to resist motion and therefore acts in the opposite direction to the (potential) motion.

A The force a solid object applies back, when acted upon by another force, is called the Resultant force.

B The force a solid object applies back, when acted upon by another force, is called the Tension force.

C The force a solid object applies back, when acted upon by another force, is called the Compression force.

D The force a solid object applies back, when acted upon by another force, is called the Reaction force.

A Deformation is changing the shape of an object.

B Deformation is slowing down of an object.

C Deformation is speeding up of an object.

D Deformation is shrinking of an object.

A The force of tension is created when a fluid flows over an aerofoil.

B The force of tension is created when a solid is squashed.

C The force of tension is created when a solid is stretched.

D The force of tension is created when a solid pushes back.

A The 3 non-contact forces are: Air resistance; Electrostatic; Magnetic

B The 3 non-contact forces are: Electrostatic; Magnetic; Weight due to gravity;

C The 3 non-contact forces are: Air resistance; Electrostatic; Weight due to gravity;

D The 3 non-contact forces are: Air resistance; Magnetic; Weight due to gravity

A Cars have a top speed because as a car gets faster the drag decreases until it balances the force from the engine.

B Cars have a top speed because as a car gets faster the drag increases until it no longer balances the force from the car engine.

C Cars have a top speed because as a car gets faster the drag increases until it balances the force from the engine.

D Cars have a top speed because as a car gets faster the drag decreases until it no longer balances the force from the car engine.

A Engines and motors produce a force called Kinetic.

B Engines and motors produce a force called Thrust.

C Engines and motors produce a force called Upthrust.

D Engines and motors produce a force called Lift.