Year 5 Forces Revision

What is a force?

• A force is forces like gravity and air resistance

• A push or a pull

• A part of gravitational pull

• A part of air resistance

Give examples of Contact Forces

• Magnetic force
• Electrostatic force
• Friction, Tension, Normal force, Applied force
• Gravity

Give examples of Non-contact forces

• Gravitational force, magnetic force, electrostatic force
• Compression force
• Frictional force
• Tension force

An (a)   variable is the thing you change in the experiment or the thing that effects the dependent variable.

Explain the concept of frictional force.

• Frictional force is a force that opposes the motion of an object when in contact with another object.

• Frictional force is a type of magnetic force.

• Frictional force is a non-contact force.

• Frictional force is a type of tension force.

Define gravitational force.

• Gravitational force is a force that pulls objects towards each other.

• Gravitational force is a type of frictional force.

• Gravitational force is a non-contact force.

• Gravitational force is a type of tension force.

What is the difference between contact and non-contact forces?

• Contact forces require physical touch between objects, while non-contact forces can act over a distance.

• Contact forces are always attractive, while non-contact forces are always repulsive.

• Contact forces are stronger than non-contact forces.

• Contact forces only involve one object, while non-contact forces involve multiple objects.

Explain the concept of tension force.

• Tension force is a force that pulls objects towards each other.

• Tension force is a type of frictional force.

• Tension force is a non-contact force.

• Tension force is a force that occurs in a stretched string or rope.

Give examples of attractive forces.

• Gravitational force, magnetic force, electrostatic force

• Compression force

• Frictional force

• Tension force

Explain the concept of normal force.

• Normal force is a force that acts perpendicular to the surface of an object in contact.

• Normal force is a type of frictional force.

• Normal force is a non-contact force.

• Normal force is a type of tension force.