Force and Motion

A book sitting on a desk has....

• Balanced forces acting on it

• Unbalanced forces acting on it

• No forces acting on it

• All forces acting on it

If a ball and a piece of paper are dropped from the same height they will

• Hit the ground at the same time because of gravity

• Hit the ground at different times because of gravity

• Hit the ground at different times because of friction

• Hit the ground at different times because of air resistance

Tags

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What can make an object start moving, stop moving or change direction?

• Gravity

• Work

• Force

• Inertia

Tags

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The tendency of an object to stay at rest or stay in motion is called

• Friction

• Newton

• Force

• Inertia

The ________ the mass of the object, the _______ the force required to move or stop the object.

• Greater; Greater

• Smaller; Greater

• Greater; Smaller

• Smaller; Smaller

Tags

NGSS.MS-PS2-2

Your mom is driving you in a car that is going 60mph. She slams on the brakes! Why does your body go forward?

• Inertia

• Force

• Gravity

• Motion

A football player kicks a ball into the air. It falls to the ground, rolls then stops. What two forces cause the ball to stop?

• Gravity and Friction

• Force and Friction

• Force and Motion

• Force and Gravity

Tags

NGSS.MS-PS2-2

Calculate the distance for a puppy running through a field if he is traveling at 10 m/min for 15 minutes.

Calculate the distance:

• 150 m

• 15 m

• 5 m

• 2 m

Newton's first law of motion states:

• A force acting on an object will change the object's velocity by causing it to speed up, slow down, or change directions.

• A body in motion tends to remain in motion, a body at rest tend to remain at rest unless acted on by an outside force.

• For every force and action, there is an equal and opposite reaction.

Newton's second law of motion states:

• A body in motion tends to remain in motion, a body at rest tend to remain at rest unless acted on by an outside force.

• For every force and action, there is an equal and opposite reaction.

• A force acting on an object will change the object's velocity by causing it to speed up, slow down, or change directions.