Suppose you are at an ice-skating rink. You push a flat smooth object forward on the ice with your hand and let go of it. If the object could slide without friction on the ice, how would it move?

It would move straight ahead at a constant speed.

It would curve to the left a constant speed.

It would curve to the right at a decreasing speed.

It would move straight ahead at a decreasing speed.

A sled sliding on a flat, icy surface with a constant velocity is best described by

Newton’s first law of motion for objects in motion.

Newton’s first law of motion for objects at rest.

Newton’s second law of motion.

Newton’s third law of motion.

Which is the best example that something has kinetic energy?

b. a tennis ball rolling across the court

a. a car parked on a steep hill

c. a picture hanging on the wall

d. a piece of coal before it's burned

After a game, she often makes a sketch of the moves that were successful. The dotted line on the sketch shows the direction the ball was moving when she kicked it. The direction if her kick is the solid arrow. How did the motion of the ball change when Mary kicked it?

The ball changed direction and its speed increased.

The ball came to a complete stop.

The ball continued moving in the same direction and its speed increased.

The ball continued moving in the same direction and its speed decreased.

What objects motion would most likely be represented by the graph?

The movement of a car at the start of a race.

The movement of a football being thrown down the field.

An airplane touching down on a runway.

A baseball pitched and then hit for a homerun.

A small car and a large semi-truck with different masses travel at the same speed down a hill toward a stop sign. What will happen when both cars apply brakes at the same time?

The car with the smaller mass will require less frictional force (brakes) than the semi-truck with the larger mass in order to stop.

The semi-truck with the larger mass will maintain its velocity while traveling down the hill.

The semi-truck with the larger mass will less inertia than the small car with the smaller mass.

The car with the smaller mass will take longer to stop than the semi-truck with the larger mass.

A man hits a pie pan with an egg sitting on top of a toilet paper roll and the egg fell straigt into the cup of water beneath it. Which one of these best explains why the egg fell straight down into the cup instead of staying on the toilet paper roll and pie pan?

The egg was at rest until the pie pan and toilet paper roll were removed, so it remained at rest in the same location. Once the pie pan was gone, the unbalanced force of gravity caused the egg to fall.

Moving the pie pan and toilet paper roll applied an action force to the egg. Since the pie pan was gon, gravity applied a reaction to the egg.

The pie pan and toilet paper roll had less mass than the egg, so a smaller force of gravity acted on the pie pan and toilet paper roll. The larger force of gravity on the egg made it fall.

The acceleration of the egg falling into the cup was equal and opposite to the acceleration of the pie pan and toilet paper roll.

Betty Sue pulls on a box with a force of 18 N to the right. Robert pulls the same box from the opposite side with a force of 20 N to the left. What will be the result?

The box will move to the left because of a net force of 2 N.

The box will move up because of the combined force of 38 N.

The box will move to the right because of a net force of 2 N.

Physics Review

Authored by Kylie Middleton

Science, Physics

8th Grade

NGSS covered

Used 41+ times

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Alan travels 100km in 5hrs. Find his average speed in km/h

5km/hr

10km/hr

50km/hr

20km/hr

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the net force?

5000 N right

4000 N right

40 N left

4000 N left

When a car goes around a corner at 20 mph, why do we say it accelerates?

The car is accelerating because of the velocity is constant

The car accelerates because it's going 20 mph

Cars always accelerate when they are in motion

The car is accelerating because it's changing direction

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does this graph represent?

Constant speed

Acceleration

Not moving

Turning around

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

LT4: The graph shows Ashley riding her bike to Maria's house.
What was occurring from point B to point C?

She was increasing her speed.

She stopped for 4 minutes.

She was decreasing in speed.

She turned around and went home.

Which example demonstrates the concept of inertia?

A coin falls straight down into a glass when the paper holding it in place is quickly removed.

A ball that is thrown at a brick wall bounces back toward the thrower.

Force equals mass times acceleration

Action-Reaction

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Mrs. Kurtishi's car has run out of gas and she is trying to push it to the side of the ride. The car has a mass of 1,200 kg and Mrs. Kurtishi pushes with an acceleration of 0.07 m/s². What is the force that Mrs. Kurtishi is applying to the car?

840 N

84 N

17142.86 N

0.000058 N

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Physics Review

Alan travels 100km in 5hrs. Find his average speed in km/h

What is the net force?

When a car goes around a corner at 20 mph, why do we say it accelerates?

What does this graph represent?

LT4: The graph shows Ashley riding her bike to Maria's house.
What was occurring from point B to point C?

Which example demonstrates the concept of inertia?

Mrs. Kurtishi's car has run out of gas and she is trying to push it to the side of the ride. The car has a mass of 1,200 kg and Mrs. Kurtishi pushes with an acceleration of 0.07 m/s². What is the force that Mrs. Kurtishi is applying to the car?

Suppose you are at an ice-skating rink. You push a flat smooth object forward on the ice with your hand and let go of it. If the object could slide without friction on the ice, how would it move?

An archer pulls the bowstring back, then releases the string and the arrow flies forward. Pulling the string back is the...

A greater applied force is required to move an object with a greater mass than one with a smaller mass.

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

Physics Review

Alan travels 100km in 5hrs. Find his average speed in km/h

What is the net force?

When a car goes around a corner at 20 mph, why do we say it accelerates?

What does this graph represent?

LT4: The graph shows Ashley riding her bike to Maria's house. What was occurring from point B to point C?

Which example demonstrates the concept of inertia?

Mrs. Kurtishi's car has run out of gas and she is trying to push it to the side of the ride. The car has a mass of 1,200 kg and Mrs. Kurtishi pushes with an acceleration of 0.07 m/s2. What is the force that Mrs. Kurtishi is applying to the car?

Suppose you are at an ice-skating rink. You push a flat smooth object forward on the ice with your hand and let go of it. If the object could slide without friction on the ice, how would it move?

An archer pulls the bowstring back, then releases the string and the arrow flies forward. Pulling the string back is the...

A greater applied force is required to move an object with a greater mass than one with a smaller mass.

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

LT4: The graph shows Ashley riding her bike to Maria's house.
What was occurring from point B to point C?

Mrs. Kurtishi's car has run out of gas and she is trying to push it to the side of the ride. The car has a mass of 1,200 kg and Mrs. Kurtishi pushes with an acceleration of 0.07 m/s². What is the force that Mrs. Kurtishi is applying to the car?