5p1.1

Sam is building a car to race down a ramp. The car weighs 100 grams. Which could Sam do to increase the speed of the car?

• increase the mass of the car

• decrease the mass of the car

• increase the friction on the ramp

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Jan has two identical magnets on her metal cabinet. She hangs a drawing using Magnet 1. She tries to hang a calendar using Magnet 2, but the calendar falls to the floor.
Which best explains why Magnet 1 can hold up the drawing but Magnet 2 is unable to hold up the calendar?

• The area near Magnet 1 has extra metal.

• The calendar is longer than the drawing.

• The area under Magnet 2 has more gravity.

• The calendar has a greater mass than the drawing.

Tags

NGSS.3-PS2-3

NGSS.3-PS2-4

What keeps the Moon orbiting Earth?

• the Sun’s gravity

• the Moon’s rotation

• Earth’s rotation

• Earth’s gravity

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

Which is the best example of a pushing force that reduces the speed of an object?

• a bat hitting a baseball

• a brake rubbing against a wheel

• a pedal turning the wheels of a bicycle

• a skateboard wheel rolling against pavement

Which information is needed to determine the speed of an object?

• the weight of the object and the the pull of gravity on the object and the amount of time it travelsdistance it travels

• the pull of gravity on the object and the amount of time it travels

• the inertia of the object and the amount of force that is pushing it

• the distance the object travels and the time it takes to travel that distance

Tags

NGSS.MS-PS3-1

A man is pushing a ball up a hill. If the man stops pushing the ball and steps out of the way, what will most likely happen to the ball?

• It will stop on the hill.

• It will roll down the hill.

• It will roll to the side toward the man.

• It will continue to roll up the hill.

Tags

NGSS.MS-PS2-4

Carey left a bowling ball and kickball outside on a windy day. Which best explains why the kickball moved but the bowling ball did not?

• The kickball has less mass so it was easier to move.

• The force of gravity acting on the bowling ball is greater.

• The mass of the kickball is greater so it is easier to move.

• The force of gravity acting on the kickball is greater.

Tags

NGSS.MS-PS2-2

Jim played ice hockey with his friends. When he hit the puck, it stopped before reaching the goal. Which most likelycaused this to happen?

• mass

• friction

• gravity

• momentum

Tags

NGSS.MS-PS2-2

Four cars are at the starting line of a race. Which car will require the most force to start moving?

• car with mass of 1200 kilograms

• car with mass of 1500 kilograms

• car with mass of 1700 kilograms

• car with mass of 2000 kilograms

Tags

NGSS.MS-PS2-2

Adrian makes a ramp out of some books and a plank of wood. He can change the height of the ramp by adding books under the plank. He rolls a toy car down each ramp. At the bottom of which ramp would the car be traveling the fastest?

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Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5

NGSS.MS-PS3-2