Force, Work, Energy, and Power

The repelling or attracting force between a magnet and a iron.

• Magnetic Force

• Electrical Force

• Gravity

What is a force?

• a push or pull
• speed or

• kinetic energy

• acceleration 

A force that resists motion between two surfaces that are pressed together.

• Spring Force

• Normal Force

• Friction Force

A forces applied when the objects involved are in direct contact.

• Contact forces

• Normal forces

• Non-contact forces

Is the force of attraction that causes an apple to fall to the ground

• Tension force

• Applied force

• Gravitational force

• Normal force

Push or pulling forces can change an objects motion.

• True

• False

What two forms of energy come from the sun?

• nuclear and gravitational

• thermal and radiant

• electrical and thermal

• mechanical and sound

Identify the energy form.

• gravitational

• sound

• nuclear

• chemical

Identify the energy form.

• chemical

• nuclear

• radiant

• sound

Which form of energy is needed by plants to make their own food?

• Heat

• Potential

• Light

• Kinetic