Unit Test Science 6 (3rd Quarter)

Which type of energy is stored in an object due to its position or condition?

• Thermal energy

• Kinetic energy

• Chemical energy

• Potential energy

Friction is a force that opposes the motion of objects. True or False?

• False

• Sometimes

• Maybe

• True

Which simple machine is a rigid bar that pivots on a fixed point?

• pulley

• wheel

• lever

• screw

A pulley is a simple machine that consists of a wheel with a groove around its circumference and a rope or chain. True or False?

• True

• Maybe

• False

• Partially true

What type of simple machine is a flat, sloped surface?

• Inclined plane

• Sloped plane

• Ramp

• Flat plane

Which simple machine is a double inclined plane that moves?

• Screw

• Lever

• Pulley

• Wedge

A wedge is a simple machine that is thick at one end and tapers to a thin edge at the other end. True or False?

• True

• Maybe

• False

• Partially true

What type of simple machine consists of a wheel attached to a shaft?

• Lever

• Screw

• Inclined plane

• Pulley

A screw is a simple machine that is an inclined plane wrapped around a cylinder. True or False?

• False

• Maybe

• True

• Partially true

Which simple machine is a type of inclined plane that is wrapped around a cylinder?

• ramp

• screw

• lever

• wheel