Force and Motion

Front

True or False: SPEED is the path a moving object takes?

Back

False

Answer explanation

False is correct because SPEED refers to how fast an object moves, while the path taken by a moving object is called its TRAJECTORY.

Front

Name the word that is a force that moves an object away from you.

Back

push

Answer explanation

The word 'push' refers to a force that moves an object away from you, while 'pull' indicates a force that brings an object closer. Therefore, 'push' is the correct answer.

Front

A force that slows down or stops a moving thing when it rubs against something.

Back

friction

Answer explanation

The word 'friction' refers to the force that opposes the motion of an object when it rubs against another surface, effectively slowing it down or stopping it. This makes 'friction' the correct answer.

Front

On which surface would a car pushed with the same force move the farthest? Options: a smooth surface, a bumpy surface

Back

a smooth surface

Answer explanation

A car pushed on a smooth surface experiences less friction compared to a bumpy surface. This reduced friction allows it to move farther when the same force is applied, making 'a smooth surface' the correct choice.

Front

What effect did the stronger force have on the ball?

Back

The ball moved faster.

Answer explanation

The stronger force applied by Katie caused the ball to accelerate, resulting in it moving faster. A greater force increases the speed of an object, which is why the correct answer is that the ball moves faster.

Front

Push or Pull...Picking a flower from the ground.

Back

pull

Answer explanation

To pick a flower from the ground, you need to exert an upward force, which is a pulling action. Therefore, the correct choice is 'pull'.

Front

Which sentence correctly describes the force needed to move two boxes?
Options: More force is needed to move the lighter box. , More force is needed to move the heavy box.

Back

More force is needed to move the heavy box.

Answer explanation

More force is needed to move the heavy box because heavier objects require greater force to overcome inertia and initiate movement, according to Newton's second law of motion.

Front

Typing on the computer keyboard: Push or pull?

Back

push

Answer explanation

When typing on a computer keyboard, you press the keys down, which is a pushing action. Therefore, the correct answer is 'push'.

Front

When an object changes its path of motion, it changes _____________.

Back

direction

Answer explanation

When an object changes its path of motion, it alters its direction. While speed can change, the question specifically asks about the path, which is defined by the direction of motion.

Front

A rolling ball is in motion. If nothing touches it, it will continue to move in a straight line until it stops. True or False?

Back

True

Answer explanation

True. According to Newton's first law of motion, an object in motion will remain in motion in a straight line unless acted upon by an external force. Therefore, a rolling ball will continue moving straight if nothing touches it.