G5 Force SRM 3

What is a contact force?

• A contact force is a force that acts between two objects that are in direct physical contact.

• A contact force is a force that only acts on moving objects.

• A contact force is a type of energy that can be stored in objects.

• A contact force is a force that acts at a distance without physical contact.

Can you move an object without touching it?

• Movement without contact is impossible in any scenario.

• Yes, through methods like magnetism or sound waves.

• Only through physical contact can an object be moved.

• Objects can only be moved by other objects touching them.

Give an example of a contact force.

• Gravity

• Magnetism

• Tension

• Friction

What happens when you kick a ball?

• The ball disappears into thin air.

• The ball bounces back towards the kicker.

• The ball moves in the direction of the kick.

• The ball stays in place.

Is lifting a heavy weight a contact force?

• Lifting a heavy weight is a non-contact force.

• Yes, lifting a heavy weight is a contact force.

• Lifting a heavy weight is a gravitational force.

• Lifting a heavy weight is an internal force.

What is a non-contact force?

• A non-contact force can only be observed in liquids.

• A non-contact force is a force that acts on an object without physical contact.

• A non-contact force requires physical touch to act.

• A non-contact force is only applicable in space.

Do non-contact forces require physical contact?

• No, non-contact forces do not require physical contact.

• Non-contact forces are the same as contact forces.

• Non-contact forces only act at a distance with physical touch.

• Yes, non-contact forces require physical contact.

Can you name a non-contact force?

• Tension force

• Frictional force

• Magnetic force

• Gravitational force

What is needed to apply a contact force?

• Physical interaction between objects.

• A change in temperature of an object.

• The presence of an electric field.

• A chemical reaction between substances.

Is pushing a trolley an example of a contact force?

• Pushing a trolley does not involve any physical interaction.

• Pushing a trolley is an example of gravitational force.

• Pushing a trolley is an example of a non-contact force.

• Yes, pushing a trolley is an example of a contact force.