G5_Q2_Science Revision

Besides strength or magnitude, what does every force have?

• Gravity

• Direction

• Friction

• Magnetism

A ball is rolled across four different surfaces with the same force. Which surface will slow the movement of the ball the most?

• Tile floor

• Paved road

• Grassy field

• Cement sidewalk

How do electric and magnetic forces act on different objects?

• They only pull objects

• They only push objects

• They either push or pull objects

• They only push or pull objects when they touch each other

What happens when an object accelerates?

• Its speed or direction changes

• Only its speed changes

• Only its direction changes

• Its speed and direction do not change

Will you ride a roller coaster what makes your body rise out of his seat at the top of a hill?

• Inertia

• gravity

• Friction

• Electricity

How can you complete this sentence so it is always true?

The greater the net force acting on an object.....

• The lesser the mass of the object.

• The greater the mass of the object.

• The lesser the acceleration of the object.

• The greater the acceleration of the object.

What always happens when the forces acting on an object are equal in strength and opposite direction?

• The object moves.

• The motion of the object does not change.

• The object does not move.

• The object becomes heavier

When does sun is low in the sky early in the morning, trees form ...

• No shadows.

• Short shadows.

• Long shadows.

• All sizes of shadows.

———- is the force of attraction between any two objects.

• Friction

• Gravity

• Magnetism

A push or pool that acts on an object is a .....

• Force

• Strength

• Power