End of Year Review

Which type of force requires objects to touch for a push or pull to occur?

• A magnetic force attracting another magnet

• A magnetic force attracting paper clips off a desk

• The force of static electricity causing hair to be attracted to a brush

• The force of friction allowing down a soccer ball as it rolls across the grass

Which phrase BEST describes a gravitational force?

• A force that spins objects

• A force that pulls objects towards each other

• A force that can make objects both attract and repel

• A force that acts only when two objects are in contact

If a balanced force acts on a toy car sitting at the top of a ramp, what will the car do?

• It will stay in place

• It will roll backwards

• It will fall off the ramp

• It will roll down the ramp

In a game of soccer, Laura scored her first goal when she kicked the ball as hard as she could towards the net. What type of force is a result of her action?

• Distance force

• Unbalanced force

• Balanced force

• Gravitational force

Some students are measuring the speed of a pendulum. They are working in groups. All of the groups have a pendulum that is the same mass and a string that is the same length. The pendulum has the same starting position for all 5 groups. What will the estimated results be of Group 5 MOST likely be?

• About 40 swings per minute

• About 50 swings per minute

• About 60 swings per minute

• About 70 swings per minute

Why did the students get different findings when timing how long it takes for a rubber ball and a paper ball to hit the ground?

• Newton’s theory must be wrong

• Another variable must have contributed to the results

• Student 2 must have used a different scientific method

• Student 1 must have made a mistake

What are the two ways that rocks are broken down into smaller pieces?

• Abrasion and erosion

• Deposition and erosion

• Physical weathering and deposition

• Chemical and physical weathering

In Florida, limestone bedrock can be found underneath the grass and soil. What is the MOST likely reason for the formation of sinkholes?

• Deposition

• Animal action

• Physical weathering

• Chemical weathering

Which landform do these piles of sediment form where the St. John’s River empties into the Atlantic Ocean?

• Beach

• Coastline

• Delta

• Dune

What is responsible for the formation of an oxbow lake?

• Physical weathering of rocks

• Erosion and deposition of sediment

• The breaking down of soil due to acid rain

• Alternating cycles of freezing and thawing