Year 7 - Forces & Simple Machines Revision

What is a force?

• A fulcrum, effort and load

• The mass of an object

• A push, pull or twist

• The matter of an object

A Force can change an objects ___________.

The two types of Forces are _________ force and ____________ force.

• Gravity and Air Resistance

• Contact and Applied

• Non-contact and Gravity

• Contact and Non-contact

Which of the following is a contact force?

• Magnetic

• Friction

• Electrical

• Gravitational

Which of these is not a contact force.

• Friction

• Air resistance

• Gravity

• Machanical Force

A ball is thrown in the air. What pulls a ball back to earth?

• Gas
• Gravity
• Friction
• Molecules

When a skydiver is falling through the air, what is the name of the force acting upwards

• Gravity

• Air resistance

• upward force

• the moon

We can draw an example of a Force using a Force Diagram with curved arrows.

• True

• False

What are the forces acting on a plane in flight?

• Wing, Cabin, Wheels, Engine

• Lift, Thrust, Acceleration, Mass

• Lift, Thrust, Drag, Weight

• Buoyancy, Drag, Air Resistance, Surface Tension

Friction is a ​ (a)   force that resists ​ (b)   when the ​ surface of one object is in contact with the surface of another object.

• motion
• contact
• non-contact
• sliding