Physics game

The discovery of “Universal Gravitation” is associated with:

• Galileo Galilei

• Albert Einstein

• Marie Curie

• Isaac Newton.

The force of gravity on you is greatest when you are standing _____.

• just above Earth's surface

• far above Earth's surface

• below Earth’s surface

• on Earth's surface

The gravitational field is directed

• towards the earth

• away from earth

• with no direction

• in a specific direction making angle with earth

If a dying star's core is less than 1.4 times the mass of the Sun, it becomes ___

• a neutron star

• a red giant

• a white dwarf

• a black hole

If a dying star's core is more than 2.8 times the Sun's mass, it becomes ___

• a white dwarf

• a black hole

• a neutron star

• a black giant

Three forces of equal magnitude act on the box shown. One force is upward, one downward, and one rightward. Which of the following statements must be true based on this information? Select two answers.

• The box must have a rightward component of velocity.

• The box has no vertical component of velocity.

• The acceleration of the box is directed to the right.

• The velocity of the box is changing with time.

Identify the image

• CPU

• Keyboard

• Mouse

• Speakers

• 1st
• 2nd
• 3rd

Which process takes the longest to occur?

• melting
• boiling
• freezing
• heating the solid

Heat transfers from an area of ____temperature to an area of ___ temperature.

• high to low
• low to high
• high to high
• It can travel high to low and low to high.